You want to invest annualy for 30 years and earn interest for an additional 5 years to end up with 2000000 dollars at the end of 35 years so what is your annual payment?

That completely depends on what rate of interest you can expect your investment

to earn, and how often you can expect the investment interest to be compounded.

The assumed rate of interest has more effect on the final value than even the annual

payment has, yet the question ignores it completely.