128850528 has 96 divisors (see below), whose sum is σ = 347832576. Its totient is φ = 41753088.

The previous prime is 128850503. The next prime is 128850529. The reversal of 128850528 is 825058821.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128850529) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 820626 + ... + 820782.

It is an arithmetic number, because the mean of its divisors is an integer number (3623256).

Almost surely, 2^128850528 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 128850528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173916288).

128850528 is an abundant number, since it is smaller than the sum of its proper divisors (218982048).

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

128850528 is a wasteful number, since it uses less digits than its factorization.

128850528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 128850528 is about 11351.2346465043. The cubic root of 128850528 is about 505.0822047011.

The spelling of 128850528 in words is "one hundred twenty-eight million, eight hundred fifty thousand, five hundred twenty-eight".