449281361 has 2 divisors, whose sum is σ = 449281362. Its totient is φ = 449281360.

The previous prime is 449281309. The next prime is 449281411. The reversal of 449281361 is 163182944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442681600 + 6599761 = 21040^2 + 2569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449281361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (449281061) 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, 224640680 + 224640681.

It is an arithmetic number, because the mean of its divisors is an integer number (224640681).

Almost surely, 2^449281361 is an apocalyptic number.

It is an amenable number.

449281361 is a deficient number, since it is larger than the sum of its proper divisors (1).

449281361 is an equidigital number, since it uses as much as digits as its factorization.

449281361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 449281361 is about 21196.2581839343. The cubic root of 449281361 is about 765.9012892410.

The spelling of 449281361 in words is "four hundred forty-nine million, two hundred eighty-one thousand, three hundred sixty-one".