402031032 has 64 divisors (see below), whose sum is σ = 1139376000. Its totient is φ = 117189504.

The previous prime is 402031027. The next prime is 402031043. The reversal of 402031032 is 230130204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27982 + ... + 39837.

It is an arithmetic number, because the mean of its divisors is an integer number (17802750).

Almost surely, 2^402031032 is an apocalyptic number.

It is an amenable number.

402031032 is an abundant number, since it is smaller than the sum of its proper divisors (737344968).

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

402031032 is a wasteful number, since it uses less digits than its factorization.

402031032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67860 (or 67856 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 402031032 is about 20050.7115085725. The cubic root of 402031032 is about 738.0512592829.

Adding to 402031032 its reverse (230130204), we get a palindrome (632161236).

The spelling of 402031032 in words is "four hundred two million, thirty-one thousand, thirty-two".