2218888 has 16 divisors (see below), whose sum is σ = 4754880. Its totient is φ = 950928.

The previous prime is 2218883. The next prime is 2218897. The reversal of 2218888 is 8888122.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2218883) 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, 19756 + ... + 19867.

It is an arithmetic number, because the mean of its divisors is an integer number (297180).

2^2218888 is an apocalyptic number.

2218888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2218888 is an abundant number, since it is smaller than the sum of its proper divisors (2535992).

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

2218888 is a wasteful number, since it uses less digits than its factorization.

2218888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39636 (or 39632 counting only the distinct ones).

The product of its digits is 16384, while the sum is 37.

The square root of 2218888 is about 1489.5932330673. The cubic root of 2218888 is about 130.4302901770.

The spelling of 2218888 in words is "two million, two hundred eighteen thousand, eight hundred eighty-eight".