1600408972 has 6 divisors (see below), whose sum is σ = 2800715708. Its totient is φ = 800204484.

The previous prime is 1600408919. The next prime is 1600408981. The reversal of 1600408972 is 2798040061.

It is a super-2 number, since 2×1600408972² = 5122617755316193568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200051118 + ... + 200051125.

Almost surely, 2^1600408972 is an apocalyptic number.

It is an amenable number.

1600408972 is a deficient number, since it is larger than the sum of its proper divisors (1200306736).

1600408972 is a wasteful number, since it uses less digits than its factorization.

1600408972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400102247 (or 400102245 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1600408972 is about 40005.1118233658. Note that the first 3 decimals coincide. The cubic root of 1600408972 is about 1169.7067402442.

The spelling of 1600408972 in words is "one billion, six hundred million, four hundred eight thousand, nine hundred seventy-two".