2217236 has 12 divisors (see below), whose sum is σ = 4434528. Its totient is φ = 950232.

The previous prime is 2217233. The next prime is 2217247. The reversal of 2217236 is 6327122.

2217236 is an admirable number.

It is a super-2 number, since 2×2217236² = 9832270959392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217233) 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, 39566 + ... + 39621.

It is an arithmetic number, because the mean of its divisors is an integer number (369544).

2^2217236 is an apocalyptic number.

It is an amenable number.

2217236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2217236 is a wasteful number, since it uses less digits than its factorization.

2217236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79198 (or 79196 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 2217236 is about 1489.0386160204. The cubic root of 2217236 is about 130.3979129479.

The spelling of 2217236 in words is "two million, two hundred seventeen thousand, two hundred thirty-six".