12533388 has 48 divisors (see below), whose sum is σ = 35185920. Its totient is φ = 3392064.

The previous prime is 12533377. The next prime is 12533441. The reversal of 12533388 is 88333521.

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, 2331 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (733040).

Almost surely, 2^12533388 is an apocalyptic number.

It is an amenable number.

12533388 is an abundant number, since it is smaller than the sum of its proper divisors (22652532).

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

12533388 is a wasteful number, since it uses less digits than its factorization.

12533388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886 (or 7884 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 12533388 is about 3540.2525333654. The cubic root of 12533388 is about 232.2858891371.

It can be divided in two parts, 12533 and 388, that added together give a palindrome (12921).

The spelling of 12533388 in words is "twelve million, five hundred thirty-three thousand, three hundred eighty-eight".