388204172 has 12 divisors (see below), whose sum is σ = 695156616. Its totient is φ = 189588000.

The previous prime is 388204147. The next prime is 388204199. The reversal of 388204172 is 271402883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128329 + ... + 1128672.

It is an arithmetic number, because the mean of its divisors is an integer number (57929718).

Almost surely, 2^388204172 is an apocalyptic number.

It is an amenable number.

388204172 is a deficient number, since it is larger than the sum of its proper divisors (306952444).

388204172 is a wasteful number, since it uses less digits than its factorization.

388204172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257048 (or 2257046 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 388204172 is about 19702.8975534057. The cubic root of 388204172 is about 729.4912148766.

The spelling of 388204172 in words is "three hundred eighty-eight million, two hundred four thousand, one hundred seventy-two".