2218512 has 20 divisors (see below), whose sum is σ = 5731280. Its totient is φ = 739488.

The previous prime is 2218451. The next prime is 2218519. The reversal of 2218512 is 2158122.

It is a happy number.

2218512 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2218519) 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, 23062 + ... + 23157.

It is an arithmetic number, because the mean of its divisors is an integer number (286564).

2^2218512 is an apocalyptic number.

It is an amenable number.

2218512 is an abundant number, since it is smaller than the sum of its proper divisors (3512768).

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

2218512 is a wasteful number, since it uses less digits than its factorization.

2218512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46230 (or 46224 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2218512 is about 1489.4670187688. The cubic root of 2218512 is about 130.4229224385.

The spelling of 2218512 in words is "two million, two hundred eighteen thousand, five hundred twelve".