389352520 has 16 divisors (see below), whose sum is σ = 876043260. Its totient is φ = 155740992.

The previous prime is 389352497. The next prime is 389352577. The reversal of 389352520 is 25253983.

It can be written as a sum of positive squares in 2 ways, for example, as 380484036 + 8868484 = 19506^2 + 2978^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 389352520.

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, 4866867 + ... + 4866946.

Almost surely, 2^389352520 is an apocalyptic number.

It is an amenable number.

389352520 is an abundant number, since it is smaller than the sum of its proper divisors (486690740).

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

389352520 is a wasteful number, since it uses less digits than its factorization.

389352520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733824 (or 9733820 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 389352520 is about 19732.0176363189. The cubic root of 389352520 is about 730.2098102122.

The spelling of 389352520 in words is "three hundred eighty-nine million, three hundred fifty-two thousand, five hundred twenty".