388956 has 12 divisors (see below), whose sum is σ = 907592. Its totient is φ = 129648.

The previous prime is 388937. The next prime is 388961. The reversal of 388956 is 659883.

388956 = 35² + 36² + ... + 106².

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

It is a congruent number.

It is an unprimeable number.

388956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16195 + ... + 16218.

2³⁸⁸⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

388956 is an abundant number, since it is smaller than the sum of its proper divisors (518636).

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

388956 is a wasteful number, since it uses less digits than its factorization.

388956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32420 (or 32418 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 388956 is about 623.6633707378. The cubic root of 388956 is about 72.9961842004.

The spelling of 388956 in words is "three hundred eighty-eight thousand, nine hundred fifty-six".