388432 has 20 divisors (see below), whose sum is σ = 821376. Its totient is φ = 176480.

The previous prime is 388403. The next prime is 388459. The reversal of 388432 is 234883.

It is a self number, because there is not a number n which added to its sum of digits gives 388432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928 + ... + 1279.

2³⁸⁸⁴³² is an apocalyptic number.

It is an amenable number.

388432 is an abundant number, since it is smaller than the sum of its proper divisors (432944).

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

388432 is a wasteful number, since it uses less digits than its factorization.

388432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226 (or 2220 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 388432 is about 623.2431307283. The cubic root of 388432 is about 72.9633894111.

It can be divided in two parts, 3884 and 32, that added together give a triangular number (3916 = T₈₈).

The spelling of 388432 in words is "three hundred eighty-eight thousand, four hundred thirty-two".