318944445 has 16 divisors (see below), whose sum is σ = 512350272. Its totient is φ = 169424000.

The previous prime is 318944441. The next prime is 318944447. The reversal of 318944445 is 544449813.

It is not a de Polignac number, because 318944445 - 2² = 318944441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318944397 and 318944406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318944441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38592 + ... + 46121.

It is an arithmetic number, because the mean of its divisors is an integer number (32021892).

Almost surely, 2^318944445 is an apocalyptic number.

It is an amenable number.

318944445 is a deficient number, since it is larger than the sum of its proper divisors (193405827).

318944445 is a wasteful number, since it uses less digits than its factorization.

318944445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84972.

The product of its digits is 276480, while the sum is 42.

The square root of 318944445 is about 17859.0157903508. The cubic root of 318944445 is about 683.2374778625.

The spelling of 318944445 in words is "three hundred eighteen million, nine hundred forty-four thousand, four hundred forty-five".