449001953 has 2 divisors, whose sum is σ = 449001954. Its totient is φ = 449001952.

The previous prime is 449001937. The next prime is 449001979. The reversal of 449001953 is 359100944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 178169104 = 16457^2 + 13348^2 .

It is a cyclic number.

It is not a de Polignac number, because 449001953 - 2⁴ = 449001937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (449006953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224500976 + 224500977.

It is an arithmetic number, because the mean of its divisors is an integer number (224500977).

Almost surely, 2^449001953 is an apocalyptic number.

It is an amenable number.

449001953 is a deficient number, since it is larger than the sum of its proper divisors (1).

449001953 is an equidigital number, since it uses as much as digits as its factorization.

449001953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 449001953 is about 21189.6661842512. Note that the first 3 decimals coincide. The cubic root of 449001953 is about 765.7424850236.

The spelling of 449001953 in words is "four hundred forty-nine million, one thousand, nine hundred fifty-three".