12680724 has 24 divisors (see below), whose sum is σ = 33815488. Its totient is φ = 3623040.

The previous prime is 12680719. The next prime is 12680737. The reversal of 12680724 is 42708621.

It is a super-2 number, since 2×12680724² = 321601522328352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12680691 and 12680700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75397 + ... + 75564.

Almost surely, 2^12680724 is an apocalyptic number.

12680724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12680724 is an abundant number, since it is smaller than the sum of its proper divisors (21134764).

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

12680724 is a wasteful number, since it uses less digits than its factorization.

12680724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150975 (or 150973 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12680724 is about 3561.0004212300. Note that the first 3 decimals coincide. The cubic root of 12680724 is about 233.1925563520.

The spelling of 12680724 in words is "twelve million, six hundred eighty thousand, seven hundred twenty-four".