448408399 has 4 divisors (see below), whose sum is σ = 453031264. Its totient is φ = 443785536.

The previous prime is 448408393. The next prime is 448408403. The reversal of 448408399 is 993804844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 448408399 - 2¹⁹ = 447884111 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 (448408393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311287 + ... + 2311480.

It is an arithmetic number, because the mean of its divisors is an integer number (113257816).

Almost surely, 2^448408399 is an apocalyptic number.

448408399 is a deficient number, since it is larger than the sum of its proper divisors (4622865).

448408399 is an equidigital number, since it uses as much as digits as its factorization.

448408399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622864.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 448408399 is about 21175.6558103875. The cubic root of 448408399 is about 765.4049141531.

The spelling of 448408399 in words is "four hundred forty-eight million, four hundred eight thousand, three hundred ninety-nine".