389386080 has 72 divisors (see below), whose sum is σ = 1328784912. Its totient is φ = 103835904.

The previous prime is 389386073. The next prime is 389386091. The reversal of 389386080 is 80683983.

389386080 is a `hidden beast` number, since 3 + 8 + 9 + 38 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133764 + ... + 136643.

It is an arithmetic number, because the mean of its divisors is an integer number (18455346).

Almost surely, 2^389386080 is an apocalyptic number.

389386080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389386080 is an abundant number, since it is smaller than the sum of its proper divisors (939398832).

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

389386080 is a wasteful number, since it uses less digits than its factorization.

389386080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270428 (or 270417 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 389386080 is about 19732.8680125318. The cubic root of 389386080 is about 730.2307896040.

The spelling of 389386080 in words is "three hundred eighty-nine million, three hundred eighty-six thousand, eighty".