200920 has 16 divisors (see below), whose sum is σ = 452160. Its totient is φ = 80352.

The previous prime is 200909. The next prime is 200927. The reversal of 200920 is 29002.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 200920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200927) by changing a digit.

200920 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2472 + ... + 2551.

It is an arithmetic number, because the mean of its divisors is an integer number (28260).

2²⁰⁰⁹²⁰ is an apocalyptic number.

200920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200920 is an abundant number, since it is smaller than the sum of its proper divisors (251240).

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

200920 is a wasteful number, since it uses less digits than its factorization.

200920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 200920 is about 448.2410066025. The cubic root of 200920 is about 58.5698874980.

Adding to 200920 its reverse (29002), we get a palindrome (229922).

The spelling of 200920 in words is "two hundred thousand, nine hundred twenty".