2218071874 has 16 divisors (see below), whose sum is σ = 3464137656. Its totient is φ = 1064246400.

The previous prime is 2218071839. The next prime is 2218071887. The reversal of 2218071874 is 4781708122.

It can be written as a sum of positive squares in 4 ways, for example, as 543216249 + 1674855625 = 23307^2 + 40925^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216717 + ... + 226720.

Almost surely, 2^2218071874 is an apocalyptic number.

2218071874 is a deficient number, since it is larger than the sum of its proper divisors (1246065782).

2218071874 is a wasteful number, since it uses less digits than its factorization.

2218071874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443541.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 2218071874 is about 47096.4104152323. The cubic root of 2218071874 is about 1304.1429709030.

Adding to 2218071874 its reverse (4781708122), we get a palindrome (6999779996).

The spelling of 2218071874 in words is "two billion, two hundred eighteen million, seventy-one thousand, eight hundred seventy-four".