320994 has 24 divisors (see below), whose sum is σ = 737100. Its totient is φ = 100608.

The previous prime is 320953. The next prime is 321007. The reversal of 320994 is 499023.

It can be written as a sum of positive squares in 2 ways, for example, as 275625 + 45369 = 525^2 + 213^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

320994 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219 + ... + 830.

2³²⁰⁹⁹⁴ is an apocalyptic number.

320994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

320994 is an abundant number, since it is smaller than the sum of its proper divisors (416106).

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

320994 is a wasteful number, since it uses less digits than its factorization.

320994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 320994 is about 566.5633239100. The cubic root of 320994 is about 68.4697861674.

The spelling of 320994 in words is "three hundred twenty thousand, nine hundred ninety-four".