388422 has 16 divisors (see below), whose sum is σ = 863280. Its totient is φ = 129456.

The previous prime is 388403. The next prime is 388459. The reversal of 388422 is 224883.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3543 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (53955).

2³⁸⁸⁴²² is an apocalyptic number.

388422 is an abundant number, since it is smaller than the sum of its proper divisors (474858).

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

388422 is a wasteful number, since it uses less digits than its factorization.

388422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204 (or 7198 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 388422 is about 623.2351081253. The cubic root of 388422 is about 72.9627632697.

The spelling of 388422 in words is "three hundred eighty-eight thousand, four hundred twenty-two".