220240260 has 72 divisors (see below), whose sum is σ = 670966296. Its totient is φ = 58475520.

The previous prime is 220240247. The next prime is 220240301. The reversal of 220240260 is 62042022.

It is a happy number.

220240260 is a `hidden beast` number, since 2 + 202 + 402 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 105021504 + 115218756 = 10248^2 + 10734^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40842 + ... + 45918.

Almost surely, 2^220240260 is an apocalyptic number.

220240260 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 220240260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335483148).

220240260 is an abundant number, since it is smaller than the sum of its proper divisors (450726036).

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

220240260 is a wasteful number, since it uses less digits than its factorization.

220240260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220240260 is about 14840.4939270902. The cubic root of 220240260 is about 603.9007519338.

Adding to 220240260 its reverse (62042022), we get a palindrome (282282282).

The spelling of 220240260 in words is "two hundred twenty million, two hundred forty thousand, two hundred sixty".