128528352 has 36 divisors (see below), whose sum is σ = 365503320. Its totient is φ = 42842688.

The previous prime is 128528327. The next prime is 128528383. The reversal of 128528352 is 253825821.

128528352 is a `hidden beast` number, since 1 + 285 + 28 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222852 + ... + 223427.

It is an arithmetic number, because the mean of its divisors is an integer number (10152870).

Almost surely, 2^128528352 is an apocalyptic number.

128528352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128528352 is an abundant number, since it is smaller than the sum of its proper divisors (236974968).

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

128528352 is a wasteful number, since it uses less digits than its factorization.

128528352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446295 (or 446284 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 128528352 is about 11337.0345328926. The cubic root of 128528352 is about 504.6608866022.

The spelling of 128528352 in words is "one hundred twenty-eight million, five hundred twenty-eight thousand, three hundred fifty-two".