444031649 has 2 divisors, whose sum is σ = 444031650. Its totient is φ = 444031648.

The previous prime is 444031613. The next prime is 444031667. The reversal of 444031649 is 946130444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251793424 + 192238225 = 15868^2 + 13865^2 .

It is a cyclic number.

It is not a de Polignac number, because 444031649 - 2²⁴ = 427254433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (444031669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222015824 + 222015825.

It is an arithmetic number, because the mean of its divisors is an integer number (222015825).

Almost surely, 2^444031649 is an apocalyptic number.

It is an amenable number.

444031649 is a deficient number, since it is larger than the sum of its proper divisors (1).

444031649 is an equidigital number, since it uses as much as digits as its factorization.

444031649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 444031649 is about 21072.0584898581. The cubic root of 444031649 is about 762.9064887716.

The spelling of 444031649 in words is "four hundred forty-four million, thirty-one thousand, six hundred forty-nine".