12642806 has 24 divisors (see below), whose sum is σ = 21115080. Its totient is φ = 5672480.

The previous prime is 12642803. The next prime is 12642827. The reversal of 12642806 is 60824621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21245 + ... + 21831.

It is an arithmetic number, because the mean of its divisors is an integer number (879795).

Almost surely, 2^12642806 is an apocalyptic number.

12642806 is a deficient number, since it is larger than the sum of its proper divisors (8472274).

12642806 is a wasteful number, since it uses less digits than its factorization.

12642806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12642806 is about 3555.6723696089. The cubic root of 12642806 is about 232.9598928922.

The spelling of 12642806 in words is "twelve million, six hundred forty-two thousand, eight hundred six".