12944938 has 4 divisors (see below), whose sum is σ = 19417410. Its totient is φ = 6472468.

The previous prime is 12944923. The next prime is 12944951. The reversal of 12944938 is 83944921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83944921 = 947 ⋅88643.

It can be written as a sum of positive squares in only one way, i.e., 7436529 + 5508409 = 2727^2 + 2347^2 .

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 12944938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236233 + ... + 3236236.

Almost surely, 2^12944938 is an apocalyptic number.

12944938 is a deficient number, since it is larger than the sum of its proper divisors (6472472).

12944938 is an equidigital number, since it uses as much as digits as its factorization.

12944938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472471.

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

The square root of 12944938 is about 3597.9074473922. The cubic root of 12944938 is about 234.8010266888.

The spelling of 12944938 in words is "twelve million, nine hundred forty-four thousand, nine hundred thirty-eight".