12509724 has 24 divisors (see below), whose sum is σ = 29251600. Its totient is φ = 4161024.

The previous prime is 12509719. The next prime is 12509741. The reversal of 12509724 is 42790521.

It is a junction number, because it is equal to n+sod(n) for n = 12509691 and 12509700.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7302 + ... + 8850.

Almost surely, 2^12509724 is an apocalyptic number.

It is an amenable number.

12509724 is an abundant number, since it is smaller than the sum of its proper divisors (16741876).

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

12509724 is a wasteful number, since it uses less digits than its factorization.

12509724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12509724 is about 3536.9088198595. The cubic root of 12509724 is about 232.1396058288.

The spelling of 12509724 in words is "twelve million, five hundred nine thousand, seven hundred twenty-four".