2186680 has 16 divisors (see below), whose sum is σ = 4920120. Its totient is φ = 874656.

The previous prime is 2186677. The next prime is 2186683. The reversal of 2186680 is 866812.

2186680 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2186677) and next prime (2186683).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2186683) 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 3 ways as a sum of consecutive naturals, for example, 27294 + ... + 27373.

2^2186680 is an apocalyptic number.

2186680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2186680 is an abundant number, since it is smaller than the sum of its proper divisors (2733440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2186680 is a wasteful number, since it uses less digits than its factorization.

2186680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54678 (or 54674 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2186680 is about 1478.7427091959. The cubic root of 2186680 is about 129.7961301566.

The spelling of 2186680 in words is "two million, one hundred eighty-six thousand, six hundred eighty".