128882528 has 12 divisors (see below), whose sum is σ = 253737540. Its totient is φ = 64441248.

The previous prime is 128882513. The next prime is 128882539. The reversal of 128882528 is 825288821.

It is a super-2 number, since 2×128882528² = 33221412047341568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013758 + ... + 2013821.

It is an arithmetic number, because the mean of its divisors is an integer number (21144795).

Almost surely, 2^128882528 is an apocalyptic number.

It is an amenable number.

128882528 is a deficient number, since it is larger than the sum of its proper divisors (124855012).

128882528 is an equidigital number, since it uses as much as digits as its factorization.

128882528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027589 (or 4027581 counting only the distinct ones).

The product of its digits is 163840, while the sum is 44.

The square root of 128882528 is about 11352.6440973017. The cubic root of 128882528 is about 505.1240135913.

The spelling of 128882528 in words is "one hundred twenty-eight million, eight hundred eighty-two thousand, five hundred twenty-eight".