389384844 has 24 divisors (see below), whose sum is σ = 909050688. Its totient is φ = 129725520.

The previous prime is 389384839. The next prime is 389384857. The reversal of 389384844 is 448483983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17959 + ... + 33185.

It is an arithmetic number, because the mean of its divisors is an integer number (37877112).

Almost surely, 2^389384844 is an apocalyptic number.

It is an amenable number.

389384844 is an abundant number, since it is smaller than the sum of its proper divisors (519665844).

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

389384844 is a wasteful number, since it uses less digits than its factorization.

389384844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17365 (or 17363 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 51.

The square root of 389384844 is about 19732.8366942009. The cubic root of 389384844 is about 730.2300169636.

The spelling of 389384844 in words is "three hundred eighty-nine million, three hundred eighty-four thousand, eight hundred forty-four".