128183264 has 96 divisors (see below), whose sum is σ = 301335552. Its totient is φ = 52992000.

The previous prime is 128183257. The next prime is 128183287. The reversal of 128183264 is 462381821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185159 + ... + 185849.

It is an arithmetic number, because the mean of its divisors is an integer number (3138912).

Almost surely, 2^128183264 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 128183264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150667776).

128183264 is an abundant number, since it is smaller than the sum of its proper divisors (173152288).

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

128183264 is a wasteful number, since it uses less digits than its factorization.

128183264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 752 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 128183264 is about 11321.8048031222. The cubic root of 128183264 is about 504.2088241899.

The spelling of 128183264 in words is "one hundred twenty-eight million, one hundred eighty-three thousand, two hundred sixty-four".