320842 has 8 divisors (see below), whose sum is σ = 489600. Its totient is φ = 157644.

The previous prime is 320839. The next prime is 320843. The reversal of 320842 is 248023.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (320843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2³²⁰⁸⁴² is an apocalyptic number.

320842 is a deficient number, since it is larger than the sum of its proper divisors (168758).

320842 is a wasteful number, since it uses less digits than its factorization.

320842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 320842 is about 566.4291659157. The cubic root of 320842 is about 68.4589769823.

Adding to 320842 its reverse (248023), we get a palindrome (568865).

It can be divided in two parts, 3 and 20842, that multiplied together give a palindrome (62526).

The spelling of 320842 in words is "three hundred twenty thousand, eight hundred forty-two".