449486561 has 2 divisors, whose sum is σ = 449486562. Its totient is φ = 449486560.

The previous prime is 449486551. The next prime is 449486621. The reversal of 449486561 is 165684944.

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., 403246561 + 46240000 = 20081^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 449486561 - 2¹⁸ = 449224417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (449486551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224743280 + 224743281.

It is an arithmetic number, because the mean of its divisors is an integer number (224743281).

Almost surely, 2^449486561 is an apocalyptic number.

It is an amenable number.

449486561 is a deficient number, since it is larger than the sum of its proper divisors (1).

449486561 is an equidigital number, since it uses as much as digits as its factorization.

449486561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 449486561 is about 21201.0981083528. The cubic root of 449486561 is about 766.0178747019.

The spelling of 449486561 in words is "four hundred forty-nine million, four hundred eighty-six thousand, five hundred sixty-one".