12981324 has 12 divisors (see below), whose sum is σ = 30289784. Its totient is φ = 4327104.

The previous prime is 12981307. The next prime is 12981329. The reversal of 12981324 is 42318921.

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 = 12981291 and 12981300.

It is not an unprimeable number, because it can be changed into a prime (12981329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540877 + ... + 540900.

Almost surely, 2^12981324 is an apocalyptic number.

It is an amenable number.

12981324 is an abundant number, since it is smaller than the sum of its proper divisors (17308460).

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

12981324 is a wasteful number, since it uses less digits than its factorization.

12981324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081784 (or 1081782 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 12981324 is about 3602.9604494082. The cubic root of 12981324 is about 235.0208160224.

The spelling of 12981324 in words is "twelve million, nine hundred eighty-one thousand, three hundred twenty-four".