449085257 has 2 divisors, whose sum is σ = 449085258. Its totient is φ = 449085256.

The previous prime is 449085229. The next prime is 449085323. The reversal of 449085257 is 752580944.

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., 418570681 + 30514576 = 20459^2 + 5524^2 .

It is a cyclic number.

It is not a de Polignac number, because 449085257 - 2⁸ = 449085001 is a prime.

It is not a weakly prime, because it can be changed into another prime (449085227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224542628 + 224542629.

It is an arithmetic number, because the mean of its divisors is an integer number (224542629).

Almost surely, 2^449085257 is an apocalyptic number.

It is an amenable number.

449085257 is a deficient number, since it is larger than the sum of its proper divisors (1).

449085257 is an equidigital number, since it uses as much as digits as its factorization.

449085257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 449085257 is about 21191.6317682240. The cubic root of 449085257 is about 765.7898385425.

The spelling of 449085257 in words is "four hundred forty-nine million, eighty-five thousand, two hundred fifty-seven".