12888732 has 12 divisors (see below), whose sum is σ = 30073736. Its totient is φ = 4296240.

The previous prime is 12888721. The next prime is 12888739. The reversal of 12888732 is 23788821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12888732² = 332238825135648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12888739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537019 + ... + 537042.

Almost surely, 2^12888732 is an apocalyptic number.

12888732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12888732 is an abundant number, since it is smaller than the sum of its proper divisors (17185004).

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

12888732 is a wasteful number, since it uses less digits than its factorization.

12888732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074068 (or 1074066 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 12888732 is about 3590.0880212051. The cubic root of 12888732 is about 234.4607038746.

The spelling of 12888732 in words is "twelve million, eight hundred eighty-eight thousand, seven hundred thirty-two".