388542 has 48 divisors (see below), whose sum is σ = 1003392. Its totient is φ = 97440.

The previous prime is 388541. The next prime is 388567. The reversal of 388542 is 245883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13384 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (20904).

2³⁸⁸⁵⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501696).

388542 is an abundant number, since it is smaller than the sum of its proper divisors (614850).

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

388542 is a wasteful number, since it uses less digits than its factorization.

388542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 52 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 388542 is about 623.3313725459. The cubic root of 388542 is about 72.9702762582.

The spelling of 388542 in words is "three hundred eighty-eight thousand, five hundred forty-two".