2183812 has 12 divisors (see below), whose sum is σ = 3894156. Its totient is φ = 1071200.

The previous prime is 2183809. The next prime is 2183821.

2183812 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1887876 + 295936 = 1374^2 + 544^2 .

It is an alternating number because its digits alternate between even and odd.

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, 4939 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (324513).

2^2183812 is an apocalyptic number.

It is an amenable number.

2183812 is a deficient number, since it is larger than the sum of its proper divisors (1710344).

2183812 is a wasteful number, since it uses less digits than its factorization.

2183812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358 (or 10356 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 2183812 is about 1477.7726482785. The cubic root of 2183812 is about 129.7393594406.

The spelling of 2183812 in words is "two million, one hundred eighty-three thousand, eight hundred twelve".