220018264 has 16 divisors (see below), whose sum is σ = 420318720. Its totient is φ = 107933280.

The previous prime is 220018261. The next prime is 220018289. The reversal of 220018264 is 462810022.

It is a happy number.

220018264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220018261) 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, 259032 + ... + 259879.

It is an arithmetic number, because the mean of its divisors is an integer number (26269920).

Almost surely, 2^220018264 is an apocalyptic number.

It is an amenable number.

220018264 is a deficient number, since it is larger than the sum of its proper divisors (200300456).

220018264 is a wasteful number, since it uses less digits than its factorization.

220018264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518970 (or 518966 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 220018264 is about 14833.0126407281. The cubic root of 220018264 is about 603.6977787192.

Adding to 220018264 its reverse (462810022), we get a palindrome (682828286).

The spelling of 220018264 in words is "two hundred twenty million, eighteen thousand, two hundred sixty-four".