12944218 has 16 divisors (see below), whose sum is σ = 22400064. Its totient is φ = 5495040.

The previous prime is 12944209. The next prime is 12944231. The reversal of 12944218 is 81244921.

It is a self number, because there is not a number n which added to its sum of digits gives 12944218.

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, 2823 + ... + 5818.

It is an arithmetic number, because the mean of its divisors is an integer number (1400004).

Almost surely, 2^12944218 is an apocalyptic number.

12944218 is a deficient number, since it is larger than the sum of its proper divisors (9455846).

12944218 is a wasteful number, since it uses less digits than its factorization.

12944218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757.

The product of its digits is 4608, while the sum is 31.

The square root of 12944218 is about 3597.8073878405. The cubic root of 12944218 is about 234.7966733816.

The spelling of 12944218 in words is "twelve million, nine hundred forty-four thousand, two hundred eighteen".