12288732 has 12 divisors (see below), whose sum is σ = 28673736. Its totient is φ = 4096240.

The previous prime is 12288707. The next prime is 12288737. The reversal of 12288732 is 23788221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12288693 and 12288702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512019 + ... + 512042.

It is an arithmetic number, because the mean of its divisors is an integer number (2389478).

Almost surely, 2^12288732 is an apocalyptic number.

12288732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12288732 is an abundant number, since it is smaller than the sum of its proper divisors (16385004).

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

12288732 is a wasteful number, since it uses less digits than its factorization.

12288732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024068 (or 1024066 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 12288732 is about 3505.5287760907. The cubic root of 12288732 is about 230.7645133053.

The spelling of 12288732 in words is "twelve million, two hundred eighty-eight thousand, seven hundred thirty-two".