15128868 has 48 divisors (see below), whose sum is σ = 37044224. Its totient is φ = 4799520.

The previous prime is 15128857. The next prime is 15128881. The reversal of 15128868 is 86882151.

15128868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15128868² = 457765293922848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24621 + ... + 25227.

Almost surely, 2^15128868 is an apocalyptic number.

It is an amenable number.

15128868 is an abundant number, since it is smaller than the sum of its proper divisors (21915356).

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

15128868 is a wasteful number, since it uses less digits than its factorization.

15128868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 15128868 is about 3889.5845536509. The cubic root of 15128868 is about 247.3254518711.

The spelling of 15128868 in words is "fifteen million, one hundred twenty-eight thousand, eight hundred sixty-eight".