402864336 has 60 divisors (see below), whose sum is σ = 1288529632. Its totient is φ = 115103808.

The previous prime is 402864299. The next prime is 402864337. The reversal of 402864336 is 633468204.

It is a happy number.

402864336 is a `hidden beast` number, since 4 + 0 + 2 + 8 + 643 + 3 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 402864336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402864337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198826 + ... + 200841.

Almost surely, 2^402864336 is an apocalyptic number.

It is an amenable number.

402864336 is an abundant number, since it is smaller than the sum of its proper divisors (885665296).

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

402864336 is a wasteful number, since it uses less digits than its factorization.

402864336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399688 (or 399679 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 402864336 is about 20071.4806628709. The cubic root of 402864336 is about 738.5608357259.

The spelling of 402864336 in words is "four hundred two million, eight hundred sixty-four thousand, three hundred thirty-six".