402256632 has 16 divisors (see below), whose sum is σ = 1005641640. Its totient is φ = 134085536.

The previous prime is 402256579. The next prime is 402256633. The reversal of 402256632 is 236652204.

It is a self number, because there is not a number n which added to its sum of digits gives 402256632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402256633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8380323 + ... + 8380370.

Almost surely, 2^402256632 is an apocalyptic number.

It is an amenable number.

402256632 is an abundant number, since it is smaller than the sum of its proper divisors (603385008).

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

402256632 is a wasteful number, since it uses less digits than its factorization.

402256632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16760702 (or 16760698 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 402256632 is about 20056.3364550957. The cubic root of 402256632 is about 738.1892861314.

The spelling of 402256632 in words is "four hundred two million, two hundred fifty-six thousand, six hundred thirty-two".