389863272 has 32 divisors (see below), whose sum is σ = 988390080. Its totient is φ = 128123520.

The previous prime is 389863259. The next prime is 389863303. The reversal of 389863272 is 272368983.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 112693 + ... + 116100.

It is an arithmetic number, because the mean of its divisors is an integer number (30887190).

Almost surely, 2^389863272 is an apocalyptic number.

It is an amenable number.

389863272 is an abundant number, since it is smaller than the sum of its proper divisors (598526808).

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

389863272 is a wasteful number, since it uses less digits than its factorization.

389863272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228873 (or 228869 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 389863272 is about 19744.9556089650. The cubic root of 389863272 is about 730.5289667088.

The spelling of 389863272 in words is "three hundred eighty-nine million, eight hundred sixty-three thousand, two hundred seventy-two".