448266778 has 16 divisors (see below), whose sum is σ = 724023360. Its totient is φ = 207372736.

The previous prime is 448266773. The next prime is 448266781. The reversal of 448266778 is 877662844.

It is not an unprimeable number, because it can be changed into a prime (448266773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109726 + ... + 113737.

It is an arithmetic number, because the mean of its divisors is an integer number (45251460).

Almost surely, 2^448266778 is an apocalyptic number.

448266778 is a deficient number, since it is larger than the sum of its proper divisors (275756582).

448266778 is a wasteful number, since it uses less digits than its factorization.

448266778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223541.

The product of its digits is 3612672, while the sum is 52.

The square root of 448266778 is about 21172.3115884875. The cubic root of 448266778 is about 765.3243262907.

The spelling of 448266778 in words is "four hundred forty-eight million, two hundred sixty-six thousand, seven hundred seventy-eight".