449462681 has 2 divisors, whose sum is σ = 449462682. Its totient is φ = 449462680.

The previous prime is 449462653. The next prime is 449462723. The reversal of 449462681 is 186264944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313856656 + 135606025 = 17716^2 + 11645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449462681 is a prime.

It is a super-2 number, since 2×449462681² = 404033403223415522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (449468681) 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, 224731340 + 224731341.

It is an arithmetic number, because the mean of its divisors is an integer number (224731341).

Almost surely, 2^449462681 is an apocalyptic number.

It is an amenable number.

449462681 is a deficient number, since it is larger than the sum of its proper divisors (1).

449462681 is an equidigital number, since it uses as much as digits as its factorization.

449462681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 449462681 is about 21200.5349224966. The cubic root of 449462681 is about 766.0043089787.

The spelling of 449462681 in words is "four hundred forty-nine million, four hundred sixty-two thousand, six hundred eighty-one".