128572960 has 48 divisors (see below), whose sum is σ = 307200600. Its totient is φ = 50845696.

The previous prime is 128572957. The next prime is 128572991. The reversal of 128572960 is 69275821.

It can be written as a sum of positive squares in 4 ways, for example, as 120209296 + 8363664 = 10964^2 + 2892^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 9726 + ... + 18754.

Almost surely, 2^128572960 is an apocalyptic number.

128572960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128572960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153600300).

128572960 is an abundant number, since it is smaller than the sum of its proper divisors (178627640).

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

128572960 is an equidigital number, since it uses as much as digits as its factorization.

128572960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133 (or 9125 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 128572960 is about 11339.0017197282. The cubic root of 128572960 is about 504.7192636285.

The spelling of 128572960 in words is "one hundred twenty-eight million, five hundred seventy-two thousand, nine hundred sixty".