395988 has 12 divisors (see below), whose sum is σ = 924000. Its totient is φ = 131992.

The previous prime is 395971. The next prime is 396001. The reversal of 395988 is 889593.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×395988² = 313612992288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

395988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16488 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (77000).

2³⁹⁵⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

395988 is an abundant number, since it is smaller than the sum of its proper divisors (528012).

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

395988 is a wasteful number, since it uses less digits than its factorization.

395988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33006 (or 33004 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 395988 is about 629.2757742040. The cubic root of 395988 is about 73.4334628534.

The spelling of 395988 in words is "three hundred ninety-five thousand, nine hundred eighty-eight".