449211923 has 2 divisors, whose sum is σ = 449211924. Its totient is φ = 449211922.

The previous prime is 449211907. The next prime is 449211929. The reversal of 449211923 is 329112944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449211923 - 2⁴ = 449211907 is a prime.

It is not a weakly prime, because it can be changed into another prime (449211929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224605961 + 224605962.

It is an arithmetic number, because the mean of its divisors is an integer number (224605962).

Almost surely, 2^449211923 is an apocalyptic number.

449211923 is a deficient number, since it is larger than the sum of its proper divisors (1).

449211923 is an equidigital number, since it uses as much as digits as its factorization.

449211923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 449211923 is about 21194.6201428570. The cubic root of 449211923 is about 765.8618296370.

The spelling of 449211923 in words is "four hundred forty-nine million, two hundred eleven thousand, nine hundred twenty-three".