2189188 has 12 divisors (see below), whose sum is σ = 3849552. Its totient is φ = 1089320.

The previous prime is 2189183. The next prime is 2189207. The reversal of 2189188 is 8819812.

It is not an unprimeable number, because it can be changed into a prime (2189183) 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, 298 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (320796).

2^2189188 is an apocalyptic number.

It is an amenable number.

2189188 is a deficient number, since it is larger than the sum of its proper divisors (1660364).

2189188 is a wasteful number, since it uses less digits than its factorization.

2189188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642 (or 2640 counting only the distinct ones).

The product of its digits is 9216, while the sum is 37.

The square root of 2189188 is about 1479.5904838840. The cubic root of 2189188 is about 129.8457341711.

The spelling of 2189188 in words is "two million, one hundred eighty-nine thousand, one hundred eighty-eight".