220243164 has 24 divisors (see below), whose sum is σ = 517308288. Its totient is φ = 72927600.

The previous prime is 220243159. The next prime is 220243169. The reversal of 220243164 is 461342022.

It is an interprime number because it is at equal distance from previous prime (220243159) and next prime (220243169).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58962 + ... + 62585.

It is an arithmetic number, because the mean of its divisors is an integer number (21554512).

Almost surely, 2^220243164 is an apocalyptic number.

It is an amenable number.

220243164 is an abundant number, since it is smaller than the sum of its proper divisors (297065124).

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

220243164 is a wasteful number, since it uses less digits than its factorization.

220243164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121705 (or 121703 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 220243164 is about 14840.5917671769. The cubic root of 220243164 is about 603.9034061868.

Adding to 220243164 its reverse (461342022), we get a palindrome (681585186).

The spelling of 220243164 in words is "two hundred twenty million, two hundred forty-three thousand, one hundred sixty-four".