320044480 has 84 divisors (see below), whose sum is σ = 886574808. Its totient is φ = 109724160.

The previous prime is 320044429. The next prime is 320044481. The reversal of 320044480 is 84440023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320044481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5475 + ... + 25885.

It is an arithmetic number, because the mean of its divisors is an integer number (10554462).

Almost surely, 2^320044480 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 320044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443287404).

320044480 is an abundant number, since it is smaller than the sum of its proper divisors (566530328).

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

320044480 is a wasteful number, since it uses less digits than its factorization.

320044480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20442 (or 20425 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 320044480 is about 17889.7870305937. The cubic root of 320044480 is about 684.0220687566.

The spelling of 320044480 in words is "three hundred twenty million, forty-four thousand, four hundred eighty".