12709426 has 32 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 5846400.

The previous prime is 12709397. The next prime is 12709427. The reversal of 12709426 is 62490721.

12709426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12709427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178971 + ... + 179041.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^12709426 is an apocalyptic number.

12709426 is the 2911-st pentagonal number.

12709426 is a deficient number, since it is larger than the sum of its proper divisors (7974734).

12709426 is a wasteful number, since it uses less digits than its factorization.

12709426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 12709426 is about 3565.0281906319. The cubic root of 12709426 is about 233.3683625414.

The spelling of 12709426 in words is "twelve million, seven hundred nine thousand, four hundred twenty-six".