402904004 has 12 divisors (see below), whose sum is σ = 705292224. Its totient is φ = 201391944.

The previous prime is 402904001. The next prime is 402904067. The reversal of 402904004 is 400409204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402904001) 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, 2297 + ... + 28479.

It is an arithmetic number, because the mean of its divisors is an integer number (58774352).

Almost surely, 2^402904004 is an apocalyptic number.

It is an amenable number.

402904004 is a deficient number, since it is larger than the sum of its proper divisors (302388220).

402904004 is a wasteful number, since it uses less digits than its factorization.

402904004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30034 (or 30032 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 402904004 is about 20072.4688068010. The cubic root of 402904004 is about 738.5850757054.

The spelling of 402904004 in words is "four hundred two million, nine hundred four thousand, four".