2186830 has 16 divisors (see below), whose sum is σ = 3953520. Its totient is φ = 870912.

The previous prime is 2186827. The next prime is 2186831. The reversal of 2186830 is 386812.

2186830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2186831) 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, 3502 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (247095).

2^2186830 is an apocalyptic number.

2186830 is a deficient number, since it is larger than the sum of its proper divisors (1766690).

2186830 is a wasteful number, since it uses less digits than its factorization.

2186830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2186830 is about 1478.7934270884. The cubic root of 2186830 is about 129.7990979699.

The spelling of 2186830 in words is "two million, one hundred eighty-six thousand, eight hundred thirty".