220236 has 12 divisors (see below), whose sum is σ = 513912. Its totient is φ = 73408.

The previous prime is 220217. The next prime is 220243. The reversal of 220236 is 632022.

220236 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 (12).

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220236.

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, 9165 + ... + 9188.

It is an arithmetic number, because the mean of its divisors is an integer number (42826).

2²²⁰²³⁶ is an apocalyptic number.

It is an amenable number.

220236 is an abundant number, since it is smaller than the sum of its proper divisors (293676).

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

220236 is a wasteful number, since it uses less digits than its factorization.

220236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18360 (or 18358 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 220236 is about 469.2930853955. The cubic root of 220236 is about 60.3896858256.

Adding to 220236 its reverse (632022), we get a palindrome (852258).

The spelling of 220236 in words is "two hundred twenty thousand, two hundred thirty-six".