220243300 has 18 divisors (see below), whose sum is σ = 477928178. Its totient is φ = 88097280.

The previous prime is 220243259. The next prime is 220243319. The reversal of 220243300 is 3342022.

It can be written as a sum of positive squares in 3 ways, for example, as 21771556 + 198471744 = 4666^2 + 14088^2 .

It is a super-2 number, since 2×220243300² = 97014222389780000, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 1101117 + ... + 1101316.

Almost surely, 2^220243300 is an apocalyptic number.

220243300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220243300 is an abundant number, since it is smaller than the sum of its proper divisors (257684878).

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

220243300 is a wasteful number, since it uses less digits than its factorization.

220243300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202447 (or 2202440 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 220243300 is about 14840.5963492038. The cubic root of 220243300 is about 603.9035304900.

Adding to 220243300 its reverse (3342022), we get a palindrome (223585322).

The spelling of 220243300 in words is "two hundred twenty million, two hundred forty-three thousand, three hundred".