128888032 has 72 divisors (see below), whose sum is σ = 317932776. Its totient is φ = 50980608.

The previous prime is 128888029. The next prime is 128888047. The reversal of 128888032 is 230888821.

It is a super-2 number, since 2×128888032² = 33224249585666048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17223 + ... + 23545.

It is an arithmetic number, because the mean of its divisors is an integer number (4415733).

Almost surely, 2^128888032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128888032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158966388).

128888032 is an abundant number, since it is smaller than the sum of its proper divisors (189044744).

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

128888032 is a wasteful number, since it uses less digits than its factorization.

128888032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360 (or 6345 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 128888032 is about 11352.8865052021. The cubic root of 128888032 is about 505.1312040228.

The spelling of 128888032 in words is "one hundred twenty-eight million, eight hundred eighty-eight thousand, thirty-two".