220694568 has 48 divisors (see below), whose sum is σ = 576801120. Its totient is φ = 70362336.

The previous prime is 220694501. The next prime is 220694587. The reversal of 220694568 is 865496022.

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 11 ways as a sum of consecutive naturals, for example, 4005 + ... + 21387.

It is an arithmetic number, because the mean of its divisors is an integer number (12016690).

Almost surely, 2^220694568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220694568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288400560).

220694568 is an abundant number, since it is smaller than the sum of its proper divisors (356106552).

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

220694568 is a wasteful number, since it uses less digits than its factorization.

220694568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17438 (or 17411 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 220694568 is about 14855.7924056578. The cubic root of 220694568 is about 604.3157056036.

The spelling of 220694568 in words is "two hundred twenty million, six hundred ninety-four thousand, five hundred sixty-eight".