448811999 has 4 divisors (see below), whose sum is σ = 451499664. Its totient is φ = 446124336.

The previous prime is 448811971. The next prime is 448812011. The reversal of 448811999 is 999118844.

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 448811999 - 2²⁰ = 447763423 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 448811999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448811929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343582 + ... + 1343915.

It is an arithmetic number, because the mean of its divisors is an integer number (112874916).

Almost surely, 2^448811999 is an apocalyptic number.

448811999 is a deficient number, since it is larger than the sum of its proper divisors (2687665).

448811999 is a wasteful number, since it uses less digits than its factorization.

448811999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687664.

The product of its digits is 746496, while the sum is 53.

The square root of 448811999 is about 21185.1834780820. The cubic root of 448811999 is about 765.6344852225.

The spelling of 448811999 in words is "four hundred forty-eight million, eight hundred eleven thousand, nine hundred ninety-nine".