320542 has 8 divisors (see below), whose sum is σ = 483336. Its totient is φ = 159432.

The previous prime is 320539. The next prime is 320561. The reversal of 320542 is 245023.

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

It is a congruent number.

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, 313 + ... + 859.

It is an arithmetic number, because the mean of its divisors is an integer number (60417).

2³²⁰⁵⁴² is an apocalyptic number.

320542 is a deficient number, since it is larger than the sum of its proper divisors (162794).

320542 is a wasteful number, since it uses less digits than its factorization.

320542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 320542 is about 566.1642871111. The cubic root of 320542 is about 68.4376330419.

Adding to 320542 its reverse (245023), we get a palindrome (565565).

The spelling of 320542 in words is "three hundred twenty thousand, five hundred forty-two".