320492 has 12 divisors (see below), whose sum is σ = 590520. Its totient is φ = 151776.

The previous prime is 320483. The next prime is 320513. The reversal of 320492 is 294023.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320492.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (49210).

2³²⁰⁴⁹² is an apocalyptic number.

It is an amenable number.

320492 is a deficient number, since it is larger than the sum of its proper divisors (270028).

320492 is a wasteful number, since it uses less digits than its factorization.

320492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240 (or 4238 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 320492 is about 566.1201285946. The cubic root of 320492 is about 68.4340744239.

The spelling of 320492 in words is "three hundred twenty thousand, four hundred ninety-two".