320976384 has 80 divisors (see below), whose sum is σ = 863984880. Its totient is φ = 105881600.

The previous prime is 320976349. The next prime is 320976389. The reversal of 320976384 is 483679023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320976389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154102 + ... + 156170.

It is an arithmetic number, because the mean of its divisors is an integer number (10799811).

Almost surely, 2^320976384 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 320976384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431992440).

320976384 is an abundant number, since it is smaller than the sum of its proper divisors (543008496).

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

320976384 is a wasteful number, since it uses less digits than its factorization.

320976384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 320976384 is about 17915.8137967551. The cubic root of 320976384 is about 684.6853361456.

The spelling of 320976384 in words is "three hundred twenty million, nine hundred seventy-six thousand, three hundred eighty-four".