440664928 has 48 divisors (see below), whose sum is σ = 957894336. Its totient is φ = 197875840.

The previous prime is 440664911. The next prime is 440664937. The reversal of 440664928 is 829466044.

It is a congruent number.

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, 21675 + ... + 36757.

It is an arithmetic number, because the mean of its divisors is an integer number (19956132).

Almost surely, 2^440664928 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 440664928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478947168).

440664928 is an abundant number, since it is smaller than the sum of its proper divisors (517229408).

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

440664928 is a wasteful number, since it uses less digits than its factorization.

440664928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15187 (or 15179 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 440664928 is about 20992.0205792582. The cubic root of 440664928 is about 760.9734341003.

The spelling of 440664928 in words is "four hundred forty million, six hundred sixty-four thousand, nine hundred twenty-eight".