402597432 has 32 divisors (see below), whose sum is σ = 1118326800. Its totient is φ = 134199072.

The previous prime is 402597427. The next prime is 402597443. The reversal of 402597432 is 234795204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931723 + ... + 932154.

Almost surely, 2^402597432 is an apocalyptic number.

It is an amenable number.

402597432 is an abundant number, since it is smaller than the sum of its proper divisors (715729368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402597432 is a wasteful number, since it uses less digits than its factorization.

402597432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863892 (or 1863882 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 402597432 is about 20064.8307244292. The cubic root of 402597432 is about 738.3976969449.

The spelling of 402597432 in words is "four hundred two million, five hundred ninety-seven thousand, four hundred thirty-two".