2218146 has 16 divisors (see below), whose sum is σ = 5070144. Its totient is φ = 633744.

The previous prime is 2218129. The next prime is 2218157. The reversal of 2218146 is 6418122.

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, 26365 + ... + 26448.

It is an arithmetic number, because the mean of its divisors is an integer number (316884).

2^2218146 is an apocalyptic number.

2218146 is an abundant number, since it is smaller than the sum of its proper divisors (2851998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2218146 is a wasteful number, since it uses less digits than its factorization.

2218146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52825.

The product of its digits is 768, while the sum is 24.

The square root of 2218146 is about 1489.3441509604. The cubic root of 2218146 is about 130.4157498509.

Subtracting from 2218146 its sum of digits (24), we obtain a palindrome (2218122).

The spelling of 2218146 in words is "two million, two hundred eighteen thousand, one hundred forty-six".