128856060 has 36 divisors (see below), whose sum is σ = 390863928. Its totient is φ = 34361568.

The previous prime is 128856029. The next prime is 128856067. The reversal of 128856060 is 60658821.

It is a happy number.

128856060 is a `hidden beast` number, since 12 + 88 + 560 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128856067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357754 + ... + 358113.

Almost surely, 2^128856060 is an apocalyptic number.

128856060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128856060 is an abundant number, since it is smaller than the sum of its proper divisors (262007868).

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

128856060 is a wasteful number, since it uses less digits than its factorization.

128856060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715882 (or 715877 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 128856060 is about 11351.4783178227. The cubic root of 128856060 is about 505.0894329078.

The spelling of 128856060 in words is "one hundred twenty-eight million, eight hundred fifty-six thousand, sixty".