220220208 has 120 divisors (see below), whose sum is σ = 688459408. Its totient is φ = 67744512.

The previous prime is 220220201. The next prime is 220220213. The reversal of 220220208 is 802022022.

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

It is not an unprimeable number, because it can be changed into a prime (220220201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48366 + ... + 52722.

Almost surely, 2^220220208 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 220220208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344229704).

220220208 is an abundant number, since it is smaller than the sum of its proper divisors (468239200).

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

220220208 is a wasteful number, since it uses less digits than its factorization.

220220208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4375 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 220220208 is about 14839.8183277289. The cubic root of 220220208 is about 603.8824237901.

The spelling of 220220208 in words is "two hundred twenty million, two hundred twenty thousand, two hundred eight".