220863208 has 16 divisors (see below), whose sum is σ = 414313380. Its totient is φ = 110379648.

The previous prime is 220863197. The next prime is 220863221. The reversal of 220863208 is 802368022.

It can be written as a sum of positive squares in 2 ways, for example, as 192155044 + 28708164 = 13862^2 + 5358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220863208.

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, 16260 + ... + 26572.

Almost surely, 2^220863208 is an apocalyptic number.

It is an amenable number.

220863208 is a deficient number, since it is larger than the sum of its proper divisors (193450172).

220863208 is a wasteful number, since it uses less digits than its factorization.

220863208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12996 (or 12992 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 220863208 is about 14861.4672223169. The cubic root of 220863208 is about 604.4695922692.

The spelling of 220863208 in words is "two hundred twenty million, eight hundred sixty-three thousand, two hundred eight".