220445205 has 16 divisors (see below), whose sum is σ = 373460544. Its totient is φ = 110654720.

The previous prime is 220445191. The next prime is 220445321. The reversal of 220445205 is 502544022.

It is a happy number.

220445205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220445205 - 2⁴ = 220445189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431991 + ... + 432500.

It is an arithmetic number, because the mean of its divisors is an integer number (23341284).

Almost surely, 2^220445205 is an apocalyptic number.

It is an amenable number.

220445205 is a deficient number, since it is larger than the sum of its proper divisors (153015339).

220445205 is a wasteful number, since it uses less digits than its factorization.

220445205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864516.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 220445205 is about 14847.3972466557. The cubic root of 220445205 is about 604.0880141977.

Adding to 220445205 its reverse (502544022), we get a palindrome (722989227).

The spelling of 220445205 in words is "two hundred twenty million, four hundred forty-five thousand, two hundred five".