395918064 has 40 divisors (see below), whose sum is σ = 1136432720. Its totient is φ = 131972544.

The previous prime is 395918023. The next prime is 395918087. The reversal of 395918064 is 460819593.

It is a happy number.

It is a super-2 number, since 2×395918064² = 313502226803016192, 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, 457807 + ... + 458670.

It is an arithmetic number, because the mean of its divisors is an integer number (28410818).

Almost surely, 2^395918064 is an apocalyptic number.

It is an amenable number.

395918064 is an abundant number, since it is smaller than the sum of its proper divisors (740514656).

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

395918064 is a wasteful number, since it uses less digits than its factorization.

395918064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916494 (or 916482 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 395918064 is about 19897.6899161687. The cubic root of 395918064 is about 734.2913953631.

The spelling of 395918064 in words is "three hundred ninety-five million, nine hundred eighteen thousand, sixty-four".