388444 has 12 divisors (see below), whose sum is σ = 776944. Its totient is φ = 166464.

The previous prime is 388403. The next prime is 388459. The reversal of 388444 is 444883.

388444 is an admirable number.

It is a super-2 number, since 2×388444² = 301777482272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

388444 is a modest number, since divided by 444 gives 388 as remainder.

It is a congruent number.

It is an unprimeable number.

388444 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, 6909 + ... + 6964.

2³⁸⁸⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

388444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

388444 is a wasteful number, since it uses less digits than its factorization.

388444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884 (or 13882 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 388444 is about 623.2527577155. The cubic root of 388444 is about 72.9641407667.

The spelling of 388444 in words is "three hundred eighty-eight thousand, four hundred forty-four".