385624172 has 24 divisors (see below), whose sum is σ = 697272576. Its totient is φ = 186491088.

The previous prime is 385624163. The next prime is 385624189. The reversal of 385624172 is 271426583.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6833 + ... + 28599.

It is an arithmetic number, because the mean of its divisors is an integer number (29053024).

Almost surely, 2^385624172 is an apocalyptic number.

It is an amenable number.

385624172 is a deficient number, since it is larger than the sum of its proper divisors (311648404).

385624172 is a wasteful number, since it uses less digits than its factorization.

385624172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21917 (or 21915 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 385624172 is about 19637.3158043557. The cubic root of 385624172 is about 727.8715583691.

The spelling of 385624172 in words is "three hundred eighty-five million, six hundred twenty-four thousand, one hundred seventy-two".