449965423 has 2 divisors, whose sum is σ = 449965424. Its totient is φ = 449965422.

The previous prime is 449965387. The next prime is 449965487. The reversal of 449965423 is 324569944.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449965423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449965723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224982711 + 224982712.

It is an arithmetic number, because the mean of its divisors is an integer number (224982712).

Almost surely, 2^449965423 is an apocalyptic number.

449965423 is a deficient number, since it is larger than the sum of its proper divisors (1).

449965423 is an equidigital number, since it uses as much as digits as its factorization.

449965423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The square root of 449965423 is about 21212.3884322346. The cubic root of 449965423 is about 766.2898047195.

The spelling of 449965423 in words is "four hundred forty-nine million, nine hundred sixty-five thousand, four hundred twenty-three".