449000491 has 2 divisors, whose sum is σ = 449000492. Its totient is φ = 449000490.

The previous prime is 449000477. The next prime is 449000509. The reversal of 449000491 is 194000944.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449000491 - 2⁵ = 449000459 is a prime.

It is not a weakly prime, because it can be changed into another prime (449000791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224500245 + 224500246.

It is an arithmetic number, because the mean of its divisors is an integer number (224500246).

Almost surely, 2^449000491 is an apocalyptic number.

449000491 is a deficient number, since it is larger than the sum of its proper divisors (1).

449000491 is an equidigital number, since it uses as much as digits as its factorization.

449000491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 449000491 is about 21189.6316862752. The cubic root of 449000491 is about 765.7416539087.

The spelling of 449000491 in words is "four hundred forty-nine million, four hundred ninety-one", and thus it is an aban number.