2217180 has 48 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 506688.

The previous prime is 2217143. The next prime is 2217181. The reversal of 2217180 is 817122.

2217180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2220 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (147840).

2^2217180 is an apocalyptic number.

2217180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2217180 is an abundant number, since it is smaller than the sum of its proper divisors (4879140).

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

2217180 is a wasteful number, since it uses less digits than its factorization.

2217180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5298 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 2217180 is about 1489.0198118225. The cubic root of 2217180 is about 130.3968151329.

The spelling of 2217180 in words is "two million, two hundred seventeen thousand, one hundred eighty".