389869272 has 192 divisors, whose sum is σ = 1202947200. Its totient is φ = 113218560.

The previous prime is 389869247. The next prime is 389869273. The reversal of 389869272 is 272968983.

It is a happy number.

Its product of digits (2612736) is a multiple of the sum of its prime factors (378).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389869273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1438497 + ... + 1438767.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^389869272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389869272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601473600).

389869272 is an abundant number, since it is smaller than the sum of its proper divisors (813077928).

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

389869272 is a wasteful number, since it uses less digits than its factorization.

389869272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 389869272 is about 19745.1075459213. The cubic root of 389869272 is about 730.5327143058.

The spelling of 389869272 in words is "three hundred eighty-nine million, eight hundred sixty-nine thousand, two hundred seventy-two".