12732424 has 8 divisors (see below), whose sum is σ = 23873310. Its totient is φ = 6366208.

The previous prime is 12732407. The next prime is 12732431. The reversal of 12732424 is 42423721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11088900 + 1643524 = 3330^2 + 1282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12732424² = 324229241831552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795769 + ... + 795784.

Almost surely, 2^12732424 is an apocalyptic number.

It is an amenable number.

12732424 is a deficient number, since it is larger than the sum of its proper divisors (11140886).

12732424 is a wasteful number, since it uses less digits than its factorization.

12732424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591559 (or 1591555 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 12732424 is about 3568.2522332369. The cubic root of 12732424 is about 233.5090395374.

The spelling of 12732424 in words is "twelve million, seven hundred thirty-two thousand, four hundred twenty-four".