12888324 has 36 divisors (see below), whose sum is σ = 33118540. Its totient is φ = 4224960.

The previous prime is 12888319. The next prime is 12888361. The reversal of 12888324 is 42388821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 12110400 = 882^2 + 3480^2 .

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

It is a super-2 number, since 2×12888324² = 332217791057952, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 739 + ... + 5130.

Almost surely, 2^12888324 is an apocalyptic number.

It is an amenable number.

12888324 is an abundant number, since it is smaller than the sum of its proper divisors (20230216).

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

12888324 is a wasteful number, since it uses less digits than its factorization.

12888324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940 (or 5935 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 12888324 is about 3590.0311976360. The cubic root of 12888324 is about 234.4582298537.

The spelling of 12888324 in words is "twelve million, eight hundred eighty-eight thousand, three hundred twenty-four".