389554272 has 84 divisors (see below), whose sum is σ = 1149945300. Its totient is φ = 129843648.

The previous prime is 389554267. The next prime is 389554309. The reversal of 389554272 is 272455983.

389554272 is a `hidden beast` number, since 38 + 9 + 5 + 542 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 14979 + ... + 31677.

It is an arithmetic number, because the mean of its divisors is an integer number (13689825).

Almost surely, 2^389554272 is an apocalyptic number.

389554272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389554272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574972650).

389554272 is an abundant number, since it is smaller than the sum of its proper divisors (760391028).

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

389554272 is an equidigital number, since it uses as much as digits as its factorization.

389554272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16727 (or 16704 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 389554272 is about 19737.1292745424. The cubic root of 389554272 is about 730.3359134592.

The spelling of 389554272 in words is "three hundred eighty-nine million, five hundred fifty-four thousand, two hundred seventy-two".