220185204 has 12 divisors (see below), whose sum is σ = 513765504. Its totient is φ = 73395064.

The previous prime is 220185191. The next prime is 220185209. The reversal of 220185204 is 402581022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220185209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9174372 + ... + 9174395.

It is an arithmetic number, because the mean of its divisors is an integer number (42813792).

Almost surely, 2^220185204 is an apocalyptic number.

It is an amenable number.

220185204 is an abundant number, since it is smaller than the sum of its proper divisors (293580300).

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

220185204 is a wasteful number, since it uses less digits than its factorization.

220185204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18348774 (or 18348772 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 220185204 is about 14838.6388863669. The cubic root of 220185204 is about 603.8504263929.

The spelling of 220185204 in words is "two hundred twenty million, one hundred eighty-five thousand, two hundred four".