448768866 has 128 divisors (see below), whose sum is σ = 1174118400. Its totient is φ = 111041280.

The previous prime is 448768849. The next prime is 448768871. The reversal of 448768866 is 668867844.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1877575 + ... + 1877813.

It is an arithmetic number, because the mean of its divisors is an integer number (9172800).

Almost surely, 2^448768866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448768866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587059200).

448768866 is an abundant number, since it is smaller than the sum of its proper divisors (725349534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448768866 is a wasteful number, since it uses less digits than its factorization.

448768866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464.

The product of its digits is 12386304, while the sum is 57.

The square root of 448768866 is about 21184.1654544143. The cubic root of 448768866 is about 765.6099573799.

The spelling of 448768866 in words is "four hundred forty-eight million, seven hundred sixty-eight thousand, eight hundred sixty-six".