449454923 has 2 divisors, whose sum is σ = 449454924. Its totient is φ = 449454922.

The previous prime is 449454911. The next prime is 449454977. The reversal of 449454923 is 329454944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449454923 - 2²² = 445260619 is a prime.

It is not a weakly prime, because it can be changed into another prime (449454323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224727461 + 224727462.

It is an arithmetic number, because the mean of its divisors is an integer number (224727462).

Almost surely, 2^449454923 is an apocalyptic number.

449454923 is a deficient number, since it is larger than the sum of its proper divisors (1).

449454923 is an equidigital number, since it uses as much as digits as its factorization.

449454923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 449454923 is about 21200.3519546257. The cubic root of 449454923 is about 765.9999017195. Note that the first 4 decimals are identical.

The spelling of 449454923 in words is "four hundred forty-nine million, four hundred fifty-four thousand, nine hundred twenty-three".