402464404 has 12 divisors (see below), whose sum is σ = 717602004. Its totient is φ = 197435264.

The previous prime is 402464401. The next prime is 402464411. The reversal of 402464404 is 404464204.

It can be written as a sum of positive squares in 2 ways, for example, as 360240400 + 42224004 = 18980^2 + 6498^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402464401) 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, 948997 + ... + 949420.

It is an arithmetic number, because the mean of its divisors is an integer number (59800167).

Almost surely, 2^402464404 is an apocalyptic number.

It is an amenable number.

402464404 is a deficient number, since it is larger than the sum of its proper divisors (315137600).

402464404 is a wasteful number, since it uses less digits than its factorization.

402464404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898474 (or 1898472 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 402464404 is about 20061.5154960935. The cubic root of 402464404 is about 738.3163597894.

The spelling of 402464404 in words is "four hundred two million, four hundred sixty-four thousand, four hundred four".