449319931 has 2 divisors, whose sum is σ = 449319932. Its totient is φ = 449319930.

The previous prime is 449319907. The next prime is 449319947. The reversal of 449319931 is 139913944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 449319931 - 2⁹ = 449319419 is a prime.

It is a super-2 number, since 2×449319931² = 403776800787689522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449319901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224659965 + 224659966.

It is an arithmetic number, because the mean of its divisors is an integer number (224659966).

Almost surely, 2^449319931 is an apocalyptic number.

449319931 is a deficient number, since it is larger than the sum of its proper divisors (1).

449319931 is an equidigital number, since it uses as much as digits as its factorization.

449319931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 43.

The square root of 449319931 is about 21197.1679948053. The cubic root of 449319931 is about 765.9232056984.

The spelling of 449319931 in words is "four hundred forty-nine million, three hundred nineteen thousand, nine hundred thirty-one".