12757424 has 20 divisors (see below), whose sum is σ = 24797520. Its totient is φ = 6358080.

The previous prime is 12757421. The next prime is 12757439. The reversal of 12757424 is 42475721.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12757421) 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, 4634 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (1239876).

Almost surely, 2^12757424 is an apocalyptic number.

It is an amenable number.

12757424 is a deficient number, since it is larger than the sum of its proper divisors (12040096).

12757424 is a wasteful number, since it uses less digits than its factorization.

12757424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588 (or 2582 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 12757424 is about 3571.7536309214. The cubic root of 12757424 is about 233.6617705853.

The spelling of 12757424 in words is "twelve million, seven hundred fifty-seven thousand, four hundred twenty-four".