12888528 has 80 divisors (see below), whose sum is σ = 35354880. Its totient is φ = 4039168.

The previous prime is 12888527. The next prime is 12888539. The reversal of 12888528 is 82588821.

It is a super-2 number, since 2×12888528² = 332228308013568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12888528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65326 + ... + 65522.

It is an arithmetic number, because the mean of its divisors is an integer number (441936).

Almost surely, 2^12888528 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 12888528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17677440).

12888528 is an abundant number, since it is smaller than the sum of its proper divisors (22466352).

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

12888528 is a wasteful number, since it uses less digits than its factorization.

12888528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its digits is 81920, while the sum is 42.

The square root of 12888528 is about 3590.0596095330. The cubic root of 12888528 is about 234.4594668707.

The spelling of 12888528 in words is "twelve million, eight hundred eighty-eight thousand, five hundred twenty-eight".