388075172 has 12 divisors (see below), whose sum is σ = 694925616. Its totient is φ = 189525000.

The previous prime is 388075153. The next prime is 388075183. The reversal of 388075172 is 271570883.

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, 1127954 + ... + 1128297.

It is an arithmetic number, because the mean of its divisors is an integer number (57910468).

Almost surely, 2^388075172 is an apocalyptic number.

It is an amenable number.

388075172 is a deficient number, since it is larger than the sum of its proper divisors (306850444).

388075172 is a wasteful number, since it uses less digits than its factorization.

388075172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256298 (or 2256296 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 388075172 is about 19699.6236512275. The cubic root of 388075172 is about 729.4104027688.

It can be divided in two parts, 388075 and 172, that multiplied together give a square (66748900 = 8170²).

The spelling of 388075172 in words is "three hundred eighty-eight million, seventy-five thousand, one hundred seventy-two".