444542317 has 2 divisors, whose sum is σ = 444542318. Its totient is φ = 444542316.

The previous prime is 444542303. The next prime is 444542341. The reversal of 444542317 is 713245444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373494276 + 71048041 = 19326^2 + 8429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444542317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444542347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222271158 + 222271159.

It is an arithmetic number, because the mean of its divisors is an integer number (222271159).

Almost surely, 2^444542317 is an apocalyptic number.

It is an amenable number.

444542317 is a deficient number, since it is larger than the sum of its proper divisors (1).

444542317 is an equidigital number, since it uses as much as digits as its factorization.

444542317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 34.

The square root of 444542317 is about 21084.1721914805. The cubic root of 444542317 is about 763.1988423116.

The spelling of 444542317 in words is "four hundred forty-four million, five hundred forty-two thousand, three hundred seventeen".