220441917 has 8 divisors (see below), whose sum is σ = 294176160. Its totient is φ = 146834480.

The previous prime is 220441883. The next prime is 220441919. The reversal of 220441917 is 719144022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220441917 - 2¹² = 220437821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220441919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27567 + ... + 34652.

It is an arithmetic number, because the mean of its divisors is an integer number (36772020).

Almost surely, 2^220441917 is an apocalyptic number.

It is an amenable number.

220441917 is a deficient number, since it is larger than the sum of its proper divisors (73734243).

220441917 is a wasteful number, since it uses less digits than its factorization.

220441917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63403.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 220441917 is about 14847.2865197652. The cubic root of 220441917 is about 604.0850108039.

Adding to 220441917 its reverse (719144022), we get a palindrome (939585939).

The spelling of 220441917 in words is "two hundred twenty million, four hundred forty-one thousand, nine hundred seventeen".