448308493 has 6 divisors (see below), whose sum is σ = 452549006. Its totient is φ = 444107352.

The previous prime is 448308449. The next prime is 448308533. The reversal of 448308493 is 394803844.

It can be written as a sum of positive squares in only one way, i.e., 430894564 + 17413929 = 20758^2 + 4173^2 .

It is not a de Polignac number, because 448308493 - 2²⁵ = 414754061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448308193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8130 + ... + 31027.

Almost surely, 2^448308493 is an apocalyptic number.

It is an amenable number.

448308493 is a deficient number, since it is larger than the sum of its proper divisors (4240513).

448308493 is an equidigital number, since it uses as much as digits as its factorization.

448308493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371 (or 39264 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 448308493 is about 21173.2966965468. The cubic root of 448308493 is about 765.3480655130.

The spelling of 448308493 in words is "four hundred forty-eight million, three hundred eight thousand, four hundred ninety-three".