404040000008 has 16 divisors (see below), whose sum is σ = 802138235580. Its totient is φ = 190136470528.

The previous prime is 404039999989. The next prime is 404040000047. The reversal of 404040000008 is 800000040404.

It can be written as a sum of positive squares in 2 ways, for example, as 394858910884 + 9181089124 = 628378^2 + 95818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485441041 + ... + 1485441312.

Almost surely, 2^404040000008 is an apocalyptic number.

It is an amenable number.

404040000008 is a deficient number, since it is larger than the sum of its proper divisors (398098235572).

404040000008 is a wasteful number, since it uses less digits than its factorization.

404040000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970882376 (or 2970882372 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The spelling of 404040000008 in words is "four hundred four billion, forty million, eight", and thus it is an aban number.