388900 has 18 divisors (see below), whose sum is σ = 844130. Its totient is φ = 155520.

The previous prime is 388897. The next prime is 388901. The reversal of 388900 is 9883.

388900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 50176 + 338724 = 224^2 + 582^2 .

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (388901) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1845 + ... + 2044.

2³⁸⁸⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

388900 is an abundant number, since it is smaller than the sum of its proper divisors (455230).

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

388900 is a wasteful number, since it uses less digits than its factorization.

388900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903 (or 3896 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 388900 is about 623.6184731068. The cubic root of 388900 is about 72.9926808199.

The spelling of 388900 in words is "three hundred eighty-eight thousand, nine hundred".