2218288 has 20 divisors (see below), whose sum is σ = 4524760. Its totient is φ = 1050624.

The previous prime is 2218283. The next prime is 2218289. The reversal of 2218288 is 8828122.

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 (2218283) 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, 3345 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (226238).

2^2218288 is an apocalyptic number.

It is an amenable number.

2218288 is an abundant number, since it is smaller than the sum of its proper divisors (2306472).

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

2218288 is a wasteful number, since it uses less digits than its factorization.

2218288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7324 (or 7318 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 2218288 is about 1489.3918221878. The cubic root of 2218288 is about 130.4185327518.

The spelling of 2218288 in words is "two million, two hundred eighteen thousand, two hundred eighty-eight".