12944398 has 4 divisors (see below), whose sum is σ = 19416600. Its totient is φ = 6472198.

The previous prime is 12944389. The next prime is 12944443. The reversal of 12944398 is 89344921.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12944398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236098 + ... + 3236101.

It is an arithmetic number, because the mean of its divisors is an integer number (4854150).

Almost surely, 2^12944398 is an apocalyptic number.

12944398 is a deficient number, since it is larger than the sum of its proper divisors (6472202).

12944398 is an equidigital number, since it uses as much as digits as its factorization.

12944398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472201.

The product of its digits is 62208, while the sum is 40.

The square root of 12944398 is about 3597.8324029893. The cubic root of 12944398 is about 234.7977617235.

The spelling of 12944398 in words is "twelve million, nine hundred forty-four thousand, three hundred ninety-eight".