389434764 has 48 divisors (see below), whose sum is σ = 922854240. Its totient is φ = 127802880.

The previous prime is 389434757. The next prime is 389434819. The reversal of 389434764 is 467434983.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225424 + ... + 227144.

It is an arithmetic number, because the mean of its divisors is an integer number (19226130).

Almost surely, 2^389434764 is an apocalyptic number.

It is an amenable number.

389434764 is an abundant number, since it is smaller than the sum of its proper divisors (533419476).

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

389434764 is a wasteful number, since it uses less digits than its factorization.

389434764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2008 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The square root of 389434764 is about 19734.1015503620. The cubic root of 389434764 is about 730.2612213324.

The spelling of 389434764 in words is "three hundred eighty-nine million, four hundred thirty-four thousand, seven hundred sixty-four".