220418868 has 12 divisors (see below), whose sum is σ = 514310720. Its totient is φ = 73472952.

The previous prime is 220418851. The next prime is 220418881. The reversal of 220418868 is 868814022.

220418868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 9184108 + ... + 9184131.

Almost surely, 2^220418868 is an apocalyptic number.

It is an amenable number.

220418868 is an abundant number, since it is smaller than the sum of its proper divisors (293891852).

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

220418868 is a wasteful number, since it uses less digits than its factorization.

220418868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368246 (or 18368244 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 220418868 is about 14846.5102970361. The cubic root of 220418868 is about 604.0639560655.

The spelling of 220418868 in words is "two hundred twenty million, four hundred eighteen thousand, eight hundred sixty-eight".