389132844 has 48 divisors (see below), whose sum is σ = 957264000. Its totient is φ = 122691456.

The previous prime is 389132833. The next prime is 389132857. The reversal of 389132844 is 448231983.

It is a junction number, because it is equal to n+sod(n) for n = 389132796 and 389132805.

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, 238359 + ... + 239985.

It is an arithmetic number, because the mean of its divisors is an integer number (19943000).

Almost surely, 2^389132844 is an apocalyptic number.

It is an amenable number.

389132844 is an abundant number, since it is smaller than the sum of its proper divisors (568131156).

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

389132844 is a wasteful number, since it uses less digits than its factorization.

389132844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702 (or 2700 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 389132844 is about 19726.4503649288. The cubic root of 389132844 is about 730.0724541834.

The spelling of 389132844 in words is "three hundred eighty-nine million, one hundred thirty-two thousand, eight hundred forty-four".