402636304 has 20 divisors (see below), whose sum is σ = 891552064. Its totient is φ = 172558368.

The previous prime is 402636301. The next prime is 402636337. The reversal of 402636304 is 403636204.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (402636301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1797372 + ... + 1797595.

Almost surely, 2^402636304 is an apocalyptic number.

It is an amenable number.

402636304 is an abundant number, since it is smaller than the sum of its proper divisors (488915760).

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

402636304 is a wasteful number, since it uses less digits than its factorization.

402636304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594982 (or 3594976 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 402636304 is about 20065.7993611020. The cubic root of 402636304 is about 738.4214610239.

The spelling of 402636304 in words is "four hundred two million, six hundred thirty-six thousand, three hundred four".