2185828 has 18 divisors (see below), whose sum is σ = 4002614. Its totient is φ = 1044384.

The previous prime is 2185801. The next prime is 2185853. The reversal of 2185828 is 8285812.

It is a happy number.

2185828 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2166784 + 19044 = 1472^2 + 138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2185793 and 2185802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1600 + ... + 2632.

2^2185828 is an apocalyptic number.

It is an amenable number.

2185828 is a deficient number, since it is larger than the sum of its proper divisors (1816786).

2185828 is a wasteful number, since it uses less digits than its factorization.

2185828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1058 counting only the distinct ones).

The product of its digits is 10240, while the sum is 34.

The square root of 2185828 is about 1478.4545985589. The cubic root of 2185828 is about 129.7792704013.

It can be divided in two parts, 21 and 85828, that added together give a square (85849 = 293²).

The spelling of 2185828 in words is "two million, one hundred eighty-five thousand, eight hundred twenty-eight".