206320 has 20 divisors (see below), whose sum is σ = 479880. Its totient is φ = 82496.

The previous prime is 206303. The next prime is 206341. The reversal of 206320 is 23602.

206320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 206320.

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, 1210 + ... + 1369.

It is an arithmetic number, because the mean of its divisors is an integer number (23994).

2²⁰⁶³²⁰ is an apocalyptic number.

206320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206320 is an abundant number, since it is smaller than the sum of its proper divisors (273560).

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

206320 is a wasteful number, since it uses less digits than its factorization.

206320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 206320 is about 454.2246140402. The cubic root of 206320 is about 59.0899709372.

Adding to 206320 its reverse (23602), we get a palindrome (229922).

The spelling of 206320 in words is "two hundred six thousand, three hundred twenty".