128916264 has 32 divisors (see below), whose sum is σ = 326178720. Its totient is φ = 42453696.

The previous prime is 128916247. The next prime is 128916283. The reversal of 128916264 is 462619821.

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, 30367 + ... + 34350.

It is an arithmetic number, because the mean of its divisors is an integer number (10193085).

Almost surely, 2^128916264 is an apocalyptic number.

It is an amenable number.

128916264 is an abundant number, since it is smaller than the sum of its proper divisors (197262456).

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

128916264 is a wasteful number, since it uses less digits than its factorization.

128916264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64809 (or 64805 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 128916264 is about 11354.1298213469. The cubic root of 128916264 is about 505.1680831207.

The spelling of 128916264 in words is "one hundred twenty-eight million, nine hundred sixteen thousand, two hundred sixty-four".