220662 has 48 divisors (see below), whose sum is σ = 550368. Its totient is φ = 63360.

The previous prime is 220613. The next prime is 220663. The reversal of 220662 is 266022.

220662 is a `hidden beast` number, since 2 + 2 + 0 + 662 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220663) by changing a digit.

220662 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5362 + ... + 5402.

It is an arithmetic number, because the mean of its divisors is an integer number (11466).

2²²⁰⁶⁶² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275184).

220662 is an abundant number, since it is smaller than the sum of its proper divisors (329706).

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

220662 is a wasteful number, since it uses less digits than its factorization.

220662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 220662 is about 469.7467402761. The cubic root of 220662 is about 60.4285977758.

Adding to 220662 its reverse (266022), we get a palindrome (486684).

The spelling of 220662 in words is "two hundred twenty thousand, six hundred sixty-two".