449330909 has 2 divisors, whose sum is σ = 449330910. Its totient is φ = 449330908.

The previous prime is 449330899. The next prime is 449330929. The reversal of 449330909 is 909033944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306600100 + 142730809 = 17510^2 + 11947^2 .

It is a cyclic number.

It is not a de Polignac number, because 449330909 - 2¹⁶ = 449265373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449330929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224665454 + 224665455.

It is an arithmetic number, because the mean of its divisors is an integer number (224665455).

Almost surely, 2^449330909 is an apocalyptic number.

It is an amenable number.

449330909 is a deficient number, since it is larger than the sum of its proper divisors (1).

449330909 is an equidigital number, since it uses as much as digits as its factorization.

449330909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 449330909 is about 21197.4269429098. The cubic root of 449330909 is about 765.9294434486.

The spelling of 449330909 in words is "four hundred forty-nine million, three hundred thirty thousand, nine hundred nine".