404605668 has 24 divisors (see below), whose sum is σ = 944726272. Its totient is φ = 134776224.

The previous prime is 404605613. The next prime is 404605681. The reversal of 404605668 is 866506404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8046 + ... + 29562.

Almost surely, 2^404605668 is an apocalyptic number.

It is an amenable number.

404605668 is an abundant number, since it is smaller than the sum of its proper divisors (540120604).

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

404605668 is a wasteful number, since it uses less digits than its factorization.

404605668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23091 (or 23089 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 404605668 is about 20114.8121542310. The cubic root of 404605668 is about 739.6234193015.

The spelling of 404605668 in words is "four hundred four million, six hundred five thousand, six hundred sixty-eight".