128079570 has 64 divisors (see below), whose sum is σ = 332369280. Its totient is φ = 31477248.

The previous prime is 128079563. The next prime is 128079583. The reversal of 128079570 is 75970821.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18054 + ... + 24126.

It is an arithmetic number, because the mean of its divisors is an integer number (5193270).

Almost surely, 2^128079570 is an apocalyptic number.

128079570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128079570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166184640).

128079570 is an abundant number, since it is smaller than the sum of its proper divisors (204289710).

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

128079570 is a wasteful number, since it uses less digits than its factorization.

128079570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 128079570 is about 11317.2244830612. The cubic root of 128079570 is about 504.0728274075.

The spelling of 128079570 in words is "one hundred twenty-eight million, seventy-nine thousand, five hundred seventy".