449058721 has 2 divisors, whose sum is σ = 449058722. Its totient is φ = 449058720.

The previous prime is 449058703. The next prime is 449058769. The reversal of 449058721 is 127850944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426629025 + 22429696 = 20655^2 + 4736^2 .

It is a cyclic number.

It is not a de Polignac number, because 449058721 - 2⁹ = 449058209 is a prime.

It is not a weakly prime, because it can be changed into another prime (449058781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224529360 + 224529361.

It is an arithmetic number, because the mean of its divisors is an integer number (224529361).

Almost surely, 2^449058721 is an apocalyptic number.

It is an amenable number.

449058721 is a deficient number, since it is larger than the sum of its proper divisors (1).

449058721 is an equidigital number, since it uses as much as digits as its factorization.

449058721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 449058721 is about 21191.0056627806. The cubic root of 449058721 is about 765.7747549928.

The spelling of 449058721 in words is "four hundred forty-nine million, fifty-eight thousand, seven hundred twenty-one".