449629423 has 2 divisors, whose sum is σ = 449629424. Its totient is φ = 449629422.

The previous prime is 449629421. The next prime is 449629441. The reversal of 449629423 is 324926944.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449629423 - 2¹ = 449629421 is a prime.

Together with 449629421, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 449629423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449629421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224814711 + 224814712.

It is an arithmetic number, because the mean of its divisors is an integer number (224814712).

Almost surely, 2^449629423 is an apocalyptic number.

449629423 is a deficient number, since it is larger than the sum of its proper divisors (1).

449629423 is an equidigital number, since it uses as much as digits as its factorization.

449629423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 43.

The square root of 449629423 is about 21204.4670529584. The cubic root of 449629423 is about 766.0990215504.

The spelling of 449629423 in words is "four hundred forty-nine million, six hundred twenty-nine thousand, four hundred twenty-three".