389720364 has 24 divisors (see below), whose sum is σ = 992015808. Its totient is φ = 118097040.

The previous prime is 389720363. The next prime is 389720407. The reversal of 389720364 is 463027983.

It is not an unprimeable number, because it can be changed into a prime (389720363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1476082 + ... + 1476345.

It is an arithmetic number, because the mean of its divisors is an integer number (41333992).

Almost surely, 2^389720364 is an apocalyptic number.

It is an amenable number.

389720364 is an abundant number, since it is smaller than the sum of its proper divisors (602295444).

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

389720364 is a wasteful number, since it uses less digits than its factorization.

389720364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952445 (or 2952443 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 389720364 is about 19741.3364289250. The cubic root of 389720364 is about 730.4396950763.

The spelling of 389720364 in words is "three hundred eighty-nine million, seven hundred twenty thousand, three hundred sixty-four".