388424 has 16 divisors (see below), whose sum is σ = 760320. Its totient is φ = 185680.

The previous prime is 388403. The next prime is 388459. The reversal of 388424 is 424883.

388424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 872 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (47520).

2³⁸⁸⁴²⁴ is an apocalyptic number.

It is an amenable number.

388424 is a deficient number, since it is larger than the sum of its proper divisors (371896).

388424 is a wasteful number, since it uses less digits than its factorization.

388424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140 (or 2136 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 388424 is about 623.2367126542. The cubic root of 388424 is about 72.9628884988.

The spelling of 388424 in words is "three hundred eighty-eight thousand, four hundred twenty-four".