449023999 has 2 divisors, whose sum is σ = 449024000. Its totient is φ = 449023998.

The previous prime is 449023997. The next prime is 449024011. The reversal of 449023999 is 999320944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449023999 - 2¹ = 449023997 is a prime.

Together with 449023997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449023997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224511999 + 224512000.

It is an arithmetic number, because the mean of its divisors is an integer number (224512000).

Almost surely, 2^449023999 is an apocalyptic number.

449023999 is a deficient number, since it is larger than the sum of its proper divisors (1).

449023999 is an equidigital number, since it uses as much as digits as its factorization.

449023999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 49.

The square root of 449023999 is about 21190.1863842676. The cubic root of 449023999 is about 765.7550174729.

The spelling of 449023999 in words is "four hundred forty-nine million, twenty-three thousand, nine hundred ninety-nine".