389438896 has 160 divisors (see below), whose sum is σ = 1005649920. Its totient is φ = 141523200.

The previous prime is 389438891. The next prime is 389438897. The reversal of 389438896 is 698834983.

It is a self number, because there is not a number n which added to its sum of digits gives 389438896.

It is not an unprimeable number, because it can be changed into a prime (389438891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2972751 + ... + 2972881.

It is an arithmetic number, because the mean of its divisors is an integer number (6285312).

Almost surely, 2^389438896 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 389438896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502824960).

389438896 is an abundant number, since it is smaller than the sum of its proper divisors (616211024).

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

389438896 is a wasteful number, since it uses less digits than its factorization.

389438896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 297 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 58.

The square root of 389438896 is about 19734.2062419546. The cubic root of 389438896 is about 730.2638040745.

The spelling of 389438896 in words is "three hundred eighty-nine million, four hundred thirty-eight thousand, eight hundred ninety-six".