128852928 has 84 divisors (see below), whose sum is σ = 391088880. Its totient is φ = 40421376.

The previous prime is 128852891. The next prime is 128852939. The reversal of 128852928 is 829258821.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3213 + ... + 16371.

It is an arithmetic number, because the mean of its divisors is an integer number (4655820).

Almost surely, 2^128852928 is an apocalyptic number.

128852928 is a gapful number since it is divisible by the number (18) 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 128852928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195544440).

128852928 is an abundant number, since it is smaller than the sum of its proper divisors (262235952).

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

128852928 is a wasteful number, since it uses less digits than its factorization.

128852928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13194 (or 13181 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 128852928 is about 11351.3403613846. The cubic root of 128852928 is about 505.0853406079.

The spelling of 128852928 in words is "one hundred twenty-eight million, eight hundred fifty-two thousand, nine hundred twenty-eight".