2206188 has 18 divisors (see below), whose sum is σ = 5576844. Its totient is φ = 735384.

The previous prime is 2206163. The next prime is 2206189. The reversal of 2206188 is 8816022.

2206188 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2206189) 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 5 ways as a sum of consecutive naturals, for example, 30606 + ... + 30677.

2^2206188 is an apocalyptic number.

It is an amenable number.

2206188 is an abundant number, since it is smaller than the sum of its proper divisors (3370656).

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

2206188 is a wasteful number, since it uses less digits than its factorization.

2206188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61293 (or 61288 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2206188 is about 1485.3242070336. The cubic root of 2206188 is about 130.1809708363.

The spelling of 2206188 in words is "two million, two hundred six thousand, one hundred eighty-eight".