448969778 has 16 divisors (see below), whose sum is σ = 683795520. Its totient is φ = 221046000.

The previous prime is 448969733. The next prime is 448969789. The reversal of 448969778 is 877969844.

It is a self number, because there is not a number n which added to its sum of digits gives 448969778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156053 + ... + 158903.

It is an arithmetic number, because the mean of its divisors is an integer number (42737220).

Almost surely, 2^448969778 is an apocalyptic number.

448969778 is a deficient number, since it is larger than the sum of its proper divisors (234825742).

448969778 is a wasteful number, since it uses less digits than its factorization.

448969778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033.

The product of its digits is 24385536, while the sum is 62.

The square root of 448969778 is about 21188.9069562354. The cubic root of 448969778 is about 765.7241938241.

The spelling of 448969778 in words is "four hundred forty-eight million, nine hundred sixty-nine thousand, seven hundred seventy-eight".