448518491 has 2 divisors, whose sum is σ = 448518492. Its totient is φ = 448518490.

The previous prime is 448518479. The next prime is 448518523. The reversal of 448518491 is 194815844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448518491 - 2²² = 444324187 is a prime.

It is not a weakly prime, because it can be changed into another prime (448518991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224259245 + 224259246.

It is an arithmetic number, because the mean of its divisors is an integer number (224259246).

Almost surely, 2^448518491 is an apocalyptic number.

448518491 is a deficient number, since it is larger than the sum of its proper divisors (1).

448518491 is an equidigital number, since it uses as much as digits as its factorization.

448518491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 44.

The square root of 448518491 is about 21178.2551453136. The cubic root of 448518491 is about 765.4675490657.

The spelling of 448518491 in words is "four hundred forty-eight million, five hundred eighteen thousand, four hundred ninety-one".