444345313 has 2 divisors, whose sum is σ = 444345314. Its totient is φ = 444345312.

The previous prime is 444345299. The next prime is 444345347. The reversal of 444345313 is 313543444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316021729 + 128323584 = 17777^2 + 11328^2 .

It is a cyclic number.

It is not a de Polignac number, because 444345313 - 2¹⁷ = 444214241 is a prime.

It is not a weakly prime, because it can be changed into another prime (444345373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222172656 + 222172657.

It is an arithmetic number, because the mean of its divisors is an integer number (222172657).

Almost surely, 2^444345313 is an apocalyptic number.

It is an amenable number.

444345313 is a deficient number, since it is larger than the sum of its proper divisors (1).

444345313 is an equidigital number, since it uses as much as digits as its factorization.

444345313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 31.

The square root of 444345313 is about 21079.4998280320. The cubic root of 444345313 is about 763.0860855618.

Adding to 444345313 its reverse (313543444), we get a palindrome (757888757).

The spelling of 444345313 in words is "four hundred forty-four million, three hundred forty-five thousand, three hundred thirteen".