12686424 has 32 divisors (see below), whose sum is σ = 31806000. Its totient is φ = 4216832.

The previous prime is 12686423. The next prime is 12686431. The reversal of 12686424 is 42468621.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13192 + ... + 14120.

Almost surely, 2^12686424 is an apocalyptic number.

It is an amenable number.

12686424 is an abundant number, since it is smaller than the sum of its proper divisors (19119576).

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

12686424 is a wasteful number, since it uses less digits than its factorization.

12686424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507 (or 1503 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 12686424 is about 3561.8006682014. The cubic root of 12686424 is about 233.2274912253.

The spelling of 12686424 in words is "twelve million, six hundred eighty-six thousand, four hundred twenty-four".