2218565242 has 8 divisors (see below), whose sum is σ = 3382402932. Its totient is φ = 1091097600.

The previous prime is 2218565233. The next prime is 2218565249. The reversal of 2218565242 is 2425658122.

2218565242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1789205401 + 429359841 = 42299^2 + 20721^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2218565249) 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, 9092359 + ... + 9092602.

Almost surely, 2^2218565242 is an apocalyptic number.

2218565242 is a deficient number, since it is larger than the sum of its proper divisors (1163837690).

2218565242 is a wasteful number, since it uses less digits than its factorization.

2218565242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18185024.

The product of its digits is 76800, while the sum is 37.

The square root of 2218565242 is about 47101.6479754159. The cubic root of 2218565242 is about 1304.2396576872.

The spelling of 2218565242 in words is "two billion, two hundred eighteen million, five hundred sixty-five thousand, two hundred forty-two".