388344 has 32 divisors (see below), whose sum is σ = 1059840. Its totient is φ = 117600.

The previous prime is 388319. The next prime is 388351. The reversal of 388344 is 443883.

It is a super-2 number, since 2×388344² = 301622124672, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

388344 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 7 ways as a sum of consecutive naturals, for example, 472 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (33120).

2³⁸⁸³⁴⁴ is an apocalyptic number.

It is an amenable number.

388344 is an abundant number, since it is smaller than the sum of its proper divisors (671496).

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

388344 is a wasteful number, since it uses less digits than its factorization.

388344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1487 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 388344 is about 623.1725282777. The cubic root of 388344 is about 72.9578789973.

The spelling of 388344 in words is "three hundred eighty-eight thousand, three hundred forty-four".