389298528 has 96 divisors (see below), whose sum is σ = 1146337920. Its totient is φ = 128522880.

The previous prime is 389298493. The next prime is 389298557. The reversal of 389298528 is 825892983.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90343 + ... + 94553.

It is an arithmetic number, because the mean of its divisors is an integer number (11941020).

Almost surely, 2^389298528 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 389298528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573168960).

389298528 is an abundant number, since it is smaller than the sum of its proper divisors (757039392).

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

389298528 is a wasteful number, since it uses less digits than its factorization.

389298528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337 (or 4323 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 389298528 is about 19730.6494571263. The cubic root of 389298528 is about 730.1760556166.

The spelling of 389298528 in words is "three hundred eighty-nine million, two hundred ninety-eight thousand, five hundred twenty-eight".