2218418 has 8 divisors (see below), whose sum is σ = 3335580. Its totient is φ = 1106560.

The previous prime is 2218367. The next prime is 2218423. The reversal of 2218418 is 8148122.

2218418 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 2093809 + 124609 = 1447^2 + 353^2 .

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

It is a super-3 number, since 3×2218418³ = 32753023433347591896, which contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 2106.

2^2218418 is an apocalyptic number.

2218418 is a deficient number, since it is larger than the sum of its proper divisors (1117162).

2218418 is a wasteful number, since it uses less digits than its factorization.

2218418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652.

The product of its digits is 1024, while the sum is 26.

The square root of 2218418 is about 1489.4354635230. The cubic root of 2218418 is about 130.4210803738.

The spelling of 2218418 in words is "two million, two hundred eighteen thousand, four hundred eighteen".