320442 has 8 divisors (see below), whose sum is σ = 640896. Its totient is φ = 106812.

The previous prime is 320431. The next prime is 320449. The reversal of 320442 is 244023.

It is a happy number.

320442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

320442 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320442.

It is not an unprimeable number, because it can be changed into a prime (320449) by changing a digit.

320442 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 26698 + ... + 26709.

It is an arithmetic number, because the mean of its divisors is an integer number (80112).

2³²⁰⁴⁴² is an apocalyptic number.

320442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320442 is a wasteful number, since it uses less digits than its factorization.

320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53412.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 320442 is about 566.0759666335. The cubic root of 320442 is about 68.4305154357.

Adding to 320442 its reverse (244023), we get a palindrome (564465).

The spelling of 320442 in words is "three hundred twenty thousand, four hundred forty-two", and thus it is an iban number.