128924568 has 64 divisors (see below), whose sum is σ = 373708800. Its totient is φ = 41104800.

The previous prime is 128924527. The next prime is 128924573. The reversal of 128924568 is 865429821.

128924568 is a `hidden beast` number, since 1 + 2 + 89 + 2 + 4 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8008 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (5839200).

Almost surely, 2^128924568 is an apocalyptic number.

128924568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128924568 is an abundant number, since it is smaller than the sum of its proper divisors (244784232).

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

128924568 is a wasteful number, since it uses less digits than its factorization.

128924568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25989 (or 25979 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 128924568 is about 11354.4954973790. The cubic root of 128924568 is about 505.1789295041.

The spelling of 128924568 in words is "one hundred twenty-eight million, nine hundred twenty-four thousand, five hundred sixty-eight".