320974992 has 120 divisors (see below), whose sum is σ = 998769408. Its totient is φ = 95558400.

The previous prime is 320974991. The next prime is 320975033. The reversal of 320974992 is 299479023.

It is not an unprimeable number, because it can be changed into a prime (320974991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55267 + ... + 60797.

Almost surely, 2^320974992 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 320974992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499384704).

320974992 is an abundant number, since it is smaller than the sum of its proper divisors (677794416).

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

320974992 is a wasteful number, since it uses less digits than its factorization.

320974992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589 (or 5580 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 320974992 is about 17915.7749483521. The cubic root of 320974992 is about 684.6843463704.

The spelling of 320974992 in words is "three hundred twenty million, nine hundred seventy-four thousand, nine hundred ninety-two".