409668912 has 60 divisors (see below), whose sum is σ = 1173184584. Its totient is φ = 133378560.

The previous prime is 409668871. The next prime is 409668923. The reversal of 409668912 is 219866904.

It is a happy 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, 26889 + ... + 39272.

Almost surely, 2^409668912 is an apocalyptic number.

It is an amenable number.

409668912 is an abundant number, since it is smaller than the sum of its proper divisors (763515672).

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

409668912 is a wasteful number, since it uses less digits than its factorization.

409668912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66218 (or 66209 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 409668912 is about 20240.2794447112. The cubic root of 409668912 is about 742.6958596324.

The spelling of 409668912 in words is "four hundred nine million, six hundred sixty-eight thousand, nine hundred twelve".