320216 has 16 divisors (see below), whose sum is σ = 646800. Its totient is φ = 147744.

The previous prime is 320213. The next prime is 320219. The reversal of 320216 is 612023.

It is an interprime number because it is at equal distance from previous prime (320213) and next prime (320219).

It is a self number, because there is not a number n which added to its sum of digits gives 320216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320213) 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, 1436 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (40425).

2³²⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

320216 is an abundant number, since it is smaller than the sum of its proper divisors (326584).

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

320216 is a wasteful number, since it uses less digits than its factorization.

320216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320216 is about 565.8763115735. The cubic root of 320216 is about 68.4144241892.

Adding to 320216 its reverse (612023), we get a palindrome (932239).

The spelling of 320216 in words is "three hundred twenty thousand, two hundred sixteen".