318944441 has 2 divisors, whose sum is σ = 318944442. Its totient is φ = 318944440.

The previous prime is 318944387. The next prime is 318944447. The reversal of 318944441 is 144449813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234212416 + 84732025 = 15304^2 + 9205^2 .

It is a cyclic number.

It is not a de Polignac number, because 318944441 - 2¹⁸ = 318682297 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 318944395 and 318944404.

It is not a weakly prime, because it can be changed into another prime (318944447) 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 as a sum of consecutive naturals, namely, 159472220 + 159472221.

It is an arithmetic number, because the mean of its divisors is an integer number (159472221).

Almost surely, 2^318944441 is an apocalyptic number.

It is an amenable number.

318944441 is a deficient number, since it is larger than the sum of its proper divisors (1).

318944441 is an equidigital number, since it uses as much as digits as its factorization.

318944441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 318944441 is about 17859.0156783626. The cubic root of 318944441 is about 683.2374750062.

The spelling of 318944441 in words is "three hundred eighteen million, nine hundred forty-four thousand, four hundred forty-one".