449446769 has 2 divisors, whose sum is σ = 449446770. Its totient is φ = 449446768.

The previous prime is 449446763. The next prime is 449446771. The reversal of 449446769 is 967644944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341806144 + 107640625 = 18488^2 + 10375^2 .

It is a cyclic number.

It is not a de Polignac number, because 449446769 - 2⁸ = 449446513 is a prime.

It is a super-2 number, since 2×449446769² = 404004796329078722, which contains 22 as substring.

Together with 449446771, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449446769.

It is not a weakly prime, because it can be changed into another prime (449446763) 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, 224723384 + 224723385.

It is an arithmetic number, because the mean of its divisors is an integer number (224723385).

Almost surely, 2^449446769 is an apocalyptic number.

It is an amenable number.

449446769 is a deficient number, since it is larger than the sum of its proper divisors (1).

449446769 is an equidigital number, since it uses as much as digits as its factorization.

449446769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 53.

The square root of 449446769 is about 21200.1596456253. The cubic root of 449446769 is about 765.9952694411.

The spelling of 449446769 in words is "four hundred forty-nine million, four hundred forty-six thousand, seven hundred sixty-nine".