397625432 has 8 divisors (see below), whose sum is σ = 745547700. Its totient is φ = 198812712.

The previous prime is 397625411. The next prime is 397625447. The reversal of 397625432 is 234526793.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 397625432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24851582 + ... + 24851597.

Almost surely, 2^397625432 is an apocalyptic number.

It is an amenable number.

397625432 is a deficient number, since it is larger than the sum of its proper divisors (347922268).

397625432 is a wasteful number, since it uses less digits than its factorization.

397625432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49703185 (or 49703181 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The square root of 397625432 is about 19940.5474348123. The cubic root of 397625432 is about 735.3454078626.

The spelling of 397625432 in words is "three hundred ninety-seven million, six hundred twenty-five thousand, four hundred thirty-two".