2217288 has 16 divisors (see below), whose sum is σ = 5543280. Its totient is φ = 739088.

The previous prime is 2217287. The next prime is 2217301. The reversal of 2217288 is 8827122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2217283) 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, 46170 + ... + 46217.

It is an arithmetic number, because the mean of its divisors is an integer number (346455).

2^2217288 is an apocalyptic number.

It is an amenable number.

2217288 is an abundant number, since it is smaller than the sum of its proper divisors (3325992).

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

2217288 is a wasteful number, since it uses less digits than its factorization.

2217288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92396 (or 92392 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 2217288 is about 1489.0560768487. The cubic root of 2217288 is about 130.3989323310.

The spelling of 2217288 in words is "two million, two hundred seventeen thousand, two hundred eighty-eight".