444758849 has 2 divisors, whose sum is σ = 444758850. Its totient is φ = 444758848.

The previous prime is 444758837. The next prime is 444758887. The reversal of 444758849 is 948857444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368371249 + 76387600 = 19193^2 + 8740^2 .

It is a cyclic number.

It is not a de Polignac number, because 444758849 - 2¹⁶ = 444693313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444758849.

It is not a weakly prime, because it can be changed into another prime (444758749) 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, 222379424 + 222379425.

It is an arithmetic number, because the mean of its divisors is an integer number (222379425).

Almost surely, 2^444758849 is an apocalyptic number.

It is an amenable number.

444758849 is a deficient number, since it is larger than the sum of its proper divisors (1).

444758849 is an equidigital number, since it uses as much as digits as its factorization.

444758849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 53.

The square root of 444758849 is about 21089.3065082757. The cubic root of 444758849 is about 763.3227376387.

The spelling of 444758849 in words is "four hundred forty-four million, seven hundred fifty-eight thousand, eight hundred forty-nine".