449006321 has 2 divisors, whose sum is σ = 449006322. Its totient is φ = 449006320.

The previous prime is 449006317. The next prime is 449006339. The reversal of 449006321 is 123600944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340033600 + 108972721 = 18440^2 + 10439^2 .

It is a cyclic number.

It is not a de Polignac number, because 449006321 - 2² = 449006317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (449006351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224503160 + 224503161.

It is an arithmetic number, because the mean of its divisors is an integer number (224503161).

Almost surely, 2^449006321 is an apocalyptic number.

It is an amenable number.

449006321 is a deficient number, since it is larger than the sum of its proper divisors (1).

449006321 is an equidigital number, since it uses as much as digits as its factorization.

449006321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 449006321 is about 21189.7692531089. The cubic root of 449006321 is about 765.7449681252.

The spelling of 449006321 in words is "four hundred forty-nine million, six thousand, three hundred twenty-one".