12279232 has 28 divisors (see below), whose sum is σ = 27848560. Its totient is φ = 5262336.

The previous prime is 12279167. The next prime is 12279233. The reversal of 12279232 is 23297221.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 12279232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12279233) 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, 13257 + ... + 14152.

Almost surely, 2^12279232 is an apocalyptic number.

It is an amenable number.

12279232 is an abundant number, since it is smaller than the sum of its proper divisors (15569328).

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

12279232 is an equidigital number, since it uses as much as digits as its factorization.

12279232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27428 (or 27418 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 12279232 is about 3504.1735116857. The cubic root of 12279232 is about 230.7050325810.

The spelling of 12279232 in words is "twelve million, two hundred seventy-nine thousand, two hundred thirty-two".