What’s the question. This is easy. Even if he retired now, his money would last 28 years. Assuming he can get 6% returns on IRA and wants 115K per year . With SS in there at whatever age, he’s fine.
initial $1,600,000
1 $1,577,296
2 $1,553,229
3 $1,527,719
4 $1,500,678
5 $1,472,014
6 $1,441,631
7 $1,409,424
8 $1,375,286
9 $1,339,099
10 $1,300,740
11 $1,260,080
12 $1,216,981
13 $1,171,296
14 $1,122,869
15 $1,071,537
16 $1,017,125
17 $959,448
18 $898,311
19 $833,505
20 $764,811
21 $691,996
22 $614,811
23 $532,996
24 $446,271
25 $354,344
26 $256,900
27 $153,610
28 $44,122