409365968 has 20 divisors (see below), whose sum is σ = 865251168. Its totient is φ = 186075360.

The previous prime is 409365923. The next prime is 409365989. The reversal of 409365968 is 869563904.

It is a congruent number.

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, 1162796 + ... + 1163147.

Almost surely, 2^409365968 is an apocalyptic number.

It is an amenable number.

409365968 is an abundant number, since it is smaller than the sum of its proper divisors (455885200).

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

409365968 is a wasteful number, since it uses less digits than its factorization.

409365968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325962 (or 2325956 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 409365968 is about 20232.7943695378. The cubic root of 409365968 is about 742.5127436812.

The spelling of 409365968 in words is "four hundred nine million, three hundred sixty-five thousand, nine hundred sixty-eight".