2105828 has 12 divisors (see below), whose sum is σ = 3748080. Its totient is φ = 1034952.

The previous prime is 2105819. The next prime is 2105833. The reversal of 2105828 is 8285012.

It is a junction number, because it is equal to n+sod(n) for n = 2105797 and 2105806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4226 + ... + 4697.

It is an arithmetic number, because the mean of its divisors is an integer number (312340).

2^2105828 is an apocalyptic number.

It is an amenable number.

2105828 is a deficient number, since it is larger than the sum of its proper divisors (1642252).

2105828 is a wasteful number, since it uses less digits than its factorization.

2105828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8986 (or 8984 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2105828 is about 1451.1471324438. The cubic root of 2105828 is about 128.1762708151.

The spelling of 2105828 in words is "two million, one hundred five thousand, eight hundred twenty-eight".