388988 has 12 divisors (see below), whose sum is σ = 702912. Its totient is φ = 188160.

The previous prime is 388963. The next prime is 388991. The reversal of 388988 is 889883.

It is a congruent number.

It is an unprimeable number.

388988 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, 1445 + ... + 1692.

It is an arithmetic number, because the mean of its divisors is an integer number (58576).

2³⁸⁸⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

388988 is a deficient number, since it is larger than the sum of its proper divisors (313924).

388988 is a wasteful number, since it uses less digits than its factorization.

388988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3170 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 388988 is about 623.6890250758. The cubic root of 388988 is about 72.9981859811.

The spelling of 388988 in words is "three hundred eighty-eight thousand, nine hundred eighty-eight".