448865489 has 4 divisors (see below), whose sum is σ = 448909824. Its totient is φ = 448821156.

The previous prime is 448865449. The next prime is 448865491. The reversal of 448865489 is 984568844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448865489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (448865429) 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, 1304 + ... + 29990.

It is an arithmetic number, because the mean of its divisors is an integer number (112227456).

Almost surely, 2^448865489 is an apocalyptic number.

It is an amenable number.

448865489 is a deficient number, since it is larger than the sum of its proper divisors (44335).

448865489 is a wasteful number, since it uses less digits than its factorization.

448865489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44334.

The product of its digits is 8847360, while the sum is 56.

The square root of 448865489 is about 21186.4458793824. The cubic root of 448865489 is about 765.6649004534.

The spelling of 448865489 in words is "four hundred forty-eight million, eight hundred sixty-five thousand, four hundred eighty-nine".