320331994 has 8 divisors (see below), whose sum is σ = 501389280. Its totient is φ = 153202236.

The previous prime is 320331961. The next prime is 320332043. The reversal of 320331994 is 499133023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×320331994³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3481824 + ... + 3481915.

It is an arithmetic number, because the mean of its divisors is an integer number (62673660).

Almost surely, 2^320331994 is an apocalyptic number.

320331994 is a deficient number, since it is larger than the sum of its proper divisors (181057286).

320331994 is a wasteful number, since it uses less digits than its factorization.

320331994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963764.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 320331994 is about 17897.8209288170. The cubic root of 320331994 is about 684.2268393127.

The spelling of 320331994 in words is "three hundred twenty million, three hundred thirty-one thousand, nine hundred ninety-four".