220243160 has 64 divisors (see below), whose sum is σ = 526629600. Its totient is φ = 82610176.

The previous prime is 220243159. The next prime is 220243169. The reversal of 220243160 is 61342022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220243169) by changing a digit.

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, 284534 + ... + 285306.

Almost surely, 2^220243160 is an apocalyptic number.

220243160 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 220243160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263314800).

220243160 is an abundant number, since it is smaller than the sum of its proper divisors (306386440).

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

220243160 is a wasteful number, since it uses less digits than its factorization.

220243160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 220243160 is about 14840.5916324114. The cubic root of 220243160 is about 603.9034025308.

Adding to 220243160 its reverse (61342022), we get a palindrome (281585182).

The spelling of 220243160 in words is "two hundred twenty million, two hundred forty-three thousand, one hundred sixty".