389919568 has 20 divisors (see below), whose sum is σ = 757365588. Its totient is φ = 194470400.

The previous prime is 389919559. The next prime is 389919601. The reversal of 389919568 is 865919983.

It can be written as a sum of positive squares in 2 ways, for example, as 367565584 + 22353984 = 19172^2 + 4728^2 .

It is a congruent number.

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, 23971 + ... + 36802.

Almost surely, 2^389919568 is an apocalyptic number.

It is an amenable number.

389919568 is a deficient number, since it is larger than the sum of its proper divisors (367446020).

389919568 is a wasteful number, since it uses less digits than its factorization.

389919568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61182 (or 61176 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The square root of 389919568 is about 19746.3811368058. The cubic root of 389919568 is about 730.5641276505.

The spelling of 389919568 in words is "three hundred eighty-nine million, nine hundred nineteen thousand, five hundred sixty-eight".