388367172 has 36 divisors (see below), whose sum is σ = 982905196. Its totient is φ = 129297600.

The previous prime is 388367153. The next prime is 388367173. The reversal of 388367172 is 271763883.

It can be written as a sum of positive squares in 2 ways, for example, as 237961476 + 150405696 = 15426^2 + 12264^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (388367173) 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 11 ways as a sum of consecutive naturals, for example, 25422 + ... + 37722.

Almost surely, 2^388367172 is an apocalyptic number.

It is an amenable number.

388367172 is an abundant number, since it is smaller than the sum of its proper divisors (594538024).

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

388367172 is a wasteful number, since it uses less digits than its factorization.

388367172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13188 (or 13183 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 388367172 is about 19707.0335667243. The cubic root of 388367172 is about 729.5933007017.

The spelling of 388367172 in words is "three hundred eighty-eight million, three hundred sixty-seven thousand, one hundred seventy-two".