2198188 has 6 divisors (see below), whose sum is σ = 3846836. Its totient is φ = 1099092.

The previous prime is 2198159. The next prime is 2198191. The reversal of 2198188 is 8818912.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274770 + ... + 274777.

2^2198188 is an apocalyptic number.

It is an amenable number.

2198188 is a deficient number, since it is larger than the sum of its proper divisors (1648648).

2198188 is a wasteful number, since it uses less digits than its factorization.

2198188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549551 (or 549549 counting only the distinct ones).

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

The square root of 2198188 is about 1482.6287465175. The cubic root of 2198188 is about 130.0234277304.

The spelling of 2198188 in words is "two million, one hundred ninety-eight thousand, one hundred eighty-eight".