389672120 has 32 divisors (see below), whose sum is σ = 881845920. Its totient is φ = 154965120.

The previous prime is 389672117. The next prime is 389672189. The reversal of 389672120 is 21276983.

It is a super-2 number, since 2×389672120² = 303688722210588800, which contains 22 as substring.

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21236 + ... + 35075.

It is an arithmetic number, because the mean of its divisors is an integer number (27557685).

Almost surely, 2^389672120 is an apocalyptic number.

It is an amenable number.

389672120 is an abundant number, since it is smaller than the sum of its proper divisors (492173800).

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

389672120 is a wasteful number, since it uses less digits than its factorization.

389672120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56495 (or 56491 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 389672120 is about 19740.1144880165. The cubic root of 389672120 is about 730.4095531334.

The spelling of 389672120 in words is "three hundred eighty-nine million, six hundred seventy-two thousand, one hundred twenty".