12646642 has 16 divisors (see below), whose sum is σ = 20123712. Its totient is φ = 5947920.

The previous prime is 12646597. The next prime is 12646661. The reversal of 12646642 is 24664621.

12646642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (1257732).

Almost surely, 2^12646642 is an apocalyptic number.

12646642 is a deficient number, since it is larger than the sum of its proper divisors (7477070).

12646642 is a wasteful number, since it uses less digits than its factorization.

12646642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its digits is 13824, while the sum is 31.

The square root of 12646642 is about 3556.2117484762. The cubic root of 12646642 is about 232.9834515806.

The spelling of 12646642 in words is "twelve million, six hundred forty-six thousand, six hundred forty-two".