128601260 has 24 divisors (see below), whose sum is σ = 285949440. Its totient is φ = 48414464.

The previous prime is 128601251. The next prime is 128601289. The reversal of 128601260 is 62106821.

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, 188780 + ... + 189459.

It is an arithmetic number, because the mean of its divisors is an integer number (11914560).

Almost surely, 2^128601260 is an apocalyptic number.

128601260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128601260 is an abundant number, since it is smaller than the sum of its proper divisors (157348180).

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

128601260 is a wasteful number, since it uses less digits than its factorization.

128601260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378265 (or 378263 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 128601260 is about 11340.2495563369. The cubic root of 128601260 is about 504.7562919101.

The spelling of 128601260 in words is "one hundred twenty-eight million, six hundred one thousand, two hundred sixty".