128964760 has 16 divisors (see below), whose sum is σ = 290170800. Its totient is φ = 51585888.

The previous prime is 128964751. The next prime is 128964763. The reversal of 128964760 is 67469821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128964763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612020 + ... + 1612099.

It is an arithmetic number, because the mean of its divisors is an integer number (18135675).

Almost surely, 2^128964760 is an apocalyptic number.

128964760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128964760 is an abundant number, since it is smaller than the sum of its proper divisors (161206040).

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

128964760 is a wasteful number, since it uses less digits than its factorization.

128964760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224130 (or 3224126 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 128964760 is about 11356.2652311400. The cubic root of 128964760 is about 505.2314202546.

It can be divided in two parts, 1289 and 64760, that added together give a square (66049 = 257²).

The spelling of 128964760 in words is "one hundred twenty-eight million, nine hundred sixty-four thousand, seven hundred sixty".