404894964 has 24 divisors (see below), whose sum is σ = 945286048. Its totient is φ = 134889120.

The previous prime is 404894953. The next prime is 404894977. The reversal of 404894964 is 469498404.

It is a happy number.

It is a super-2 number, since 2×404894964² = 327879863745122592, which contains 22 as substring.

It is a congruent number.

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, 15354 + ... + 32334.

Almost surely, 2^404894964 is an apocalyptic number.

It is an amenable number.

404894964 is an abundant number, since it is smaller than the sum of its proper divisors (540391084).

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

404894964 is a wasteful number, since it uses less digits than its factorization.

404894964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18975 (or 18973 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The square root of 404894964 is about 20122.0019878739. The cubic root of 404894964 is about 739.7996560155.

The spelling of 404894964 in words is "four hundred four million, eight hundred ninety-four thousand, nine hundred sixty-four".