2218768 has 20 divisors (see below), whose sum is σ = 4344588. Its totient is φ = 1097600.

The previous prime is 2218751. The next prime is 2218771. The reversal of 2218768 is 8678122.

It can be written as a sum of positive squares in 2 ways, for example, as 2166784 + 51984 = 1472^2 + 228^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930 + ... + 2302.

2^2218768 is an apocalyptic number.

It is an amenable number.

2218768 is a deficient number, since it is larger than the sum of its proper divisors (2125820).

2218768 is a wasteful number, since it uses less digits than its factorization.

2218768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482 (or 1476 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 2218768 is about 1489.5529530701. The cubic root of 2218768 is about 130.4279388615.

The spelling of 2218768 in words is "two million, two hundred eighteen thousand, seven hundred sixty-eight".