389785974 has 16 divisors (see below), whose sum is σ = 792352560. Its totient is φ = 127798560.

The previous prime is 389785951. The next prime is 389786017. The reversal of 389785974 is 479587983.

It is a congruent number.

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, 532129 + ... + 532860.

It is an arithmetic number, because the mean of its divisors is an integer number (49522035).

Almost surely, 2^389785974 is an apocalyptic number.

389785974 is an abundant number, since it is smaller than the sum of its proper divisors (402566586).

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

389785974 is a wasteful number, since it uses less digits than its factorization.

389785974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065055.

The product of its digits is 15240960, while the sum is 60.

The square root of 389785974 is about 19742.9981005925. The cubic root of 389785974 is about 730.4806829774.

The spelling of 389785974 in words is "three hundred eighty-nine million, seven hundred eighty-five thousand, nine hundred seventy-four".