449996489 has 2 divisors, whose sum is σ = 449996490. Its totient is φ = 449996488.

The previous prime is 449996453. The next prime is 449996497. The reversal of 449996489 is 984699944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403688464 + 46308025 = 20092^2 + 6805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449996489 is a prime.

It is a super-2 number, since 2×449996489² = 404993680224654242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449995489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224998244 + 224998245.

It is an arithmetic number, because the mean of its divisors is an integer number (224998245).

Almost surely, 2^449996489 is an apocalyptic number.

It is an amenable number.

449996489 is a deficient number, since it is larger than the sum of its proper divisors (1).

449996489 is an equidigital number, since it uses as much as digits as its factorization.

449996489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 62.

The square root of 449996489 is about 21213.1206803714. The cubic root of 449996489 is about 766.3074394162.

The spelling of 449996489 in words is "four hundred forty-nine million, nine hundred ninety-six thousand, four hundred eighty-nine".