1444890449 has 2 divisors, whose sum is σ = 1444890450. Its totient is φ = 1444890448.

The previous prime is 1444890437. The next prime is 1444890457. The reversal of 1444890449 is 9440984441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1329112849 + 115777600 = 36457^2 + 10760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444890449 - 2⁸ = 1444890193 is a prime.

It is a super-2 number, since 2×1444890449² = 4175416819222843202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1444890409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722445224 + 722445225.

It is an arithmetic number, because the mean of its divisors is an integer number (722445225).

Almost surely, 2^1444890449 is an apocalyptic number.

It is an amenable number.

1444890449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444890449 is an equidigital number, since it uses as much as digits as its factorization.

1444890449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 1444890449 is about 38011.7146285195. The cubic root of 1444890449 is about 1130.5201481924.

The spelling of 1444890449 in words is "one billion, four hundred forty-four million, eight hundred ninety thousand, four hundred forty-nine".