236220 has 48 divisors (see below), whose sum is σ = 688128. Its totient is φ = 60480.

The previous prime is 236219. The next prime is 236231. The reversal of 236220 is 22632.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 236220.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 236220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (14336).

2²³⁶²²⁰ is an apocalyptic number.

236220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344064).

236220 is an abundant number, since it is smaller than the sum of its proper divisors (451908).

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

236220 is a wasteful number, since it uses less digits than its factorization.

236220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 168 counting only the distinct ones).

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

The square root of 236220 is about 486.0246907308. The cubic root of 236220 is about 61.8166626973.

Adding to 236220 its reverse (22632), we get a palindrome (258852).

The spelling of 236220 in words is "two hundred thirty-six thousand, two hundred twenty".