2043812 has 12 divisors (see below), whose sum is σ = 3586716. Its totient is φ = 1019040.

The previous prime is 2043793. The next prime is 2043817. The reversal of 2043812 is 2183402.

It can be written as a sum of positive squares in 2 ways, for example, as 802816 + 1240996 = 896^2 + 1114^2 .

It is not an unprimeable number, because it can be changed into a prime (2043817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (298893).

2^2043812 is an apocalyptic number.

It is an amenable number.

2043812 is a deficient number, since it is larger than the sum of its proper divisors (1542904).

2043812 is a wasteful number, since it uses less digits than its factorization.

2043812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2043812 is about 1429.6195298050. The cubic root of 2043812 is about 126.9054621219.

The spelling of 2043812 in words is "two million, forty-three thousand, eight hundred twelve".