405872604 has 36 divisors (see below), whose sum is σ = 1079955240. Its totient is φ = 128170080.

The previous prime is 405872591. The next prime is 405872611. The reversal of 405872604 is 406278504.

405872604 is a `hidden beast` number, since 40 + 5 + 8 + 7 + 2 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296007 + ... + 297374.

Almost surely, 2^405872604 is an apocalyptic number.

It is an amenable number.

405872604 is an abundant number, since it is smaller than the sum of its proper divisors (674082636).

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

405872604 is a wasteful number, since it uses less digits than its factorization.

405872604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593410 (or 593405 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 405872604 is about 20146.2801529215. The cubic root of 405872604 is about 740.3946057062.

The spelling of 405872604 in words is "four hundred five million, eight hundred seventy-two thousand, six hundred four".