2189170 has 16 divisors (see below), whose sum is σ = 3965760. Its totient is φ = 870064.

The previous prime is 2189167. The next prime is 2189171. The reversal of 2189170 is 719812.

2189170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2189171) 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 7 ways as a sum of consecutive naturals, for example, 1179 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (247860).

2^2189170 is an apocalyptic number.

2189170 is a deficient number, since it is larger than the sum of its proper divisors (1776590).

2189170 is a wasteful number, since it uses less digits than its factorization.

2189170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2189170 is about 1479.5844011073. The cubic root of 2189170 is about 129.8453782964.

The spelling of 2189170 in words is "two million, one hundred eighty-nine thousand, one hundred seventy".