389660168 has 16 divisors (see below), whose sum is σ = 731780160. Its totient is φ = 194518800.

The previous prime is 389660149. The next prime is 389660177. The reversal of 389660168 is 861066983.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33548 + ... + 43643.

It is an arithmetic number, because the mean of its divisors is an integer number (45736260).

Almost surely, 2^389660168 is an apocalyptic number.

It is an amenable number.

389660168 is a deficient number, since it is larger than the sum of its proper divisors (342119992).

389660168 is a wasteful number, since it uses less digits than its factorization.

389660168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77828 (or 77824 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 389660168 is about 19739.8117518886. The cubic root of 389660168 is about 730.4020853643.

The spelling of 389660168 in words is "three hundred eighty-nine million, six hundred sixty thousand, one hundred sixty-eight".