395438988 has 48 divisors (see below), whose sum is σ = 1057964544. Its totient is φ = 112611840.

The previous prime is 395438969. The next prime is 395438993. The reversal of 395438988 is 889834593.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18556 + ... + 33692.

It is an arithmetic number, because the mean of its divisors is an integer number (22040928).

Almost surely, 2^395438988 is an apocalyptic number.

It is an amenable number.

395438988 is an abundant number, since it is smaller than the sum of its proper divisors (662525556).

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

395438988 is a wasteful number, since it uses less digits than its factorization.

395438988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15462 (or 15460 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The square root of 395438988 is about 19885.6477892977. The cubic root of 395438988 is about 733.9951022647.

The spelling of 395438988 in words is "three hundred ninety-five million, four hundred thirty-eight thousand, nine hundred eighty-eight".