I doubt you really have 2M, someone with this amount of money know how to invest his trasure, but if we presume that you are not lying, the best investment would be to buy bitcoin itself, it's the most secure and reliable currency, you can try altcoin, but recently there is only pascalcoin which is pumped with huge volume, i'm not sure if it can reach 0.001, but you can do this, put half on bitcoin and the other diversify it in many altcoin, some of them will be pumped at some point
I am more doubtful with the money he has it, but he is just waiting for opinions from others and the investment objective is crypto currency? the simplest logic, when someone has as much money as "2M", will not wait long, surely that person has invested the money in the property, or shares that they consider it is obvious and can make a profit. then you ask about investing in bitcoin? I still doubt, bitcoin is a big speculation. in my opinion, invest in the world oil stock market more realistically with the amount of money that big.