389656860 has 24 divisors (see below), whose sum is σ = 1091039376. Its totient is φ = 103908480.

The previous prime is 389656853. The next prime is 389656877. The reversal of 389656860 is 68656983.

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, 3247081 + ... + 3247200.

It is an arithmetic number, because the mean of its divisors is an integer number (45459974).

Almost surely, 2^389656860 is an apocalyptic number.

389656860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389656860 is an abundant number, since it is smaller than the sum of its proper divisors (701382516).

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

389656860 is a wasteful number, since it uses less digits than its factorization.

389656860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494293 (or 6494291 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 389656860 is about 19739.7279616513. The cubic root of 389656860 is about 730.4000184548.

The spelling of 389656860 in words is "three hundred eighty-nine million, six hundred fifty-six thousand, eight hundred sixty".