388812 has 12 divisors (see below), whose sum is σ = 907256. Its totient is φ = 129600.

The previous prime is 388793. The next prime is 388813. The reversal of 388812 is 218883.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 388812.

It is not an unprimeable number, because it can be changed into a prime (388813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16189 + ... + 16212.

2³⁸⁸⁸¹² is an apocalyptic number.

It is an amenable number.

388812 is an abundant number, since it is smaller than the sum of its proper divisors (518444).

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

388812 is a wasteful number, since it uses less digits than its factorization.

388812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32408 (or 32406 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 388812 is about 623.5479131550. The cubic root of 388812 is about 72.9871748283.

It can be divided in two parts, 38881 and 2, that added together give a palindrome (38883).

The spelling of 388812 in words is "three hundred eighty-eight thousand, eight hundred twelve".