440865768 has 64 divisors (see below), whose sum is σ = 1269596160. Its totient is φ = 124963776.

The previous prime is 440865751. The next prime is 440865793. The reversal of 440865768 is 867568044.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11005 + ... + 31667.

It is an arithmetic number, because the mean of its divisors is an integer number (19837440).

Almost surely, 2^440865768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440865768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634798080).

440865768 is an abundant number, since it is smaller than the sum of its proper divisors (828730392).

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

440865768 is a wasteful number, since it uses less digits than its factorization.

440865768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20806 (or 20802 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 440865768 is about 20996.8037567626. The cubic root of 440865768 is about 761.0890250946.

The spelling of 440865768 in words is "four hundred forty million, eight hundred sixty-five thousand, seven hundred sixty-eight".