402656532 has 24 divisors (see below), whose sum is σ = 971930400. Its totient is φ = 129590496.

The previous prime is 402656521. The next prime is 402656581. The reversal of 402656532 is 235656204.

It is a junction number, because it is equal to n+sod(n) for n = 402656493 and 402656502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578182 + ... + 578877.

It is an arithmetic number, because the mean of its divisors is an integer number (40497100).

Almost surely, 2^402656532 is an apocalyptic number.

It is an amenable number.

402656532 is an abundant number, since it is smaller than the sum of its proper divisors (569273868).

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

402656532 is a wasteful number, since it uses less digits than its factorization.

402656532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157095 (or 1157093 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 402656532 is about 20066.3033964903. The cubic root of 402656532 is about 738.4338266410.

The spelling of 402656532 in words is "four hundred two million, six hundred fifty-six thousand, five hundred thirty-two".