2186828 has 12 divisors (see below), whose sum is σ = 4373712. Its totient is φ = 937200.

The previous prime is 2186827. The next prime is 2186831. The reversal of 2186828 is 8286812.

2186828 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2186827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39023 + ... + 39078.

It is an arithmetic number, because the mean of its divisors is an integer number (364476).

2^2186828 is an apocalyptic number.

2186828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2186828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2186828 is a wasteful number, since it uses less digits than its factorization.

2186828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78112 (or 78110 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 2186828 is about 1478.7927508613. The cubic root of 2186828 is about 129.7990584000.

The spelling of 2186828 in words is "two million, one hundred eighty-six thousand, eight hundred twenty-eight".