2188856 has 16 divisors (see below), whose sum is σ = 4120200. Its totient is φ = 1090144.

The previous prime is 2188831. The next prime is 2188861. The reversal of 2188856 is 6588812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026 + ... + 3678.

2^2188856 is an apocalyptic number.

It is an amenable number.

2188856 is a deficient number, since it is larger than the sum of its proper divisors (1931344).

2188856 is a wasteful number, since it uses less digits than its factorization.

2188856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1074 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 2188856 is about 1479.4782864240. The cubic root of 2188856 is about 129.8391699468.

The spelling of 2188856 in words is "two million, one hundred eighty-eight thousand, eight hundred fifty-six".