2051812 has 24 divisors (see below), whose sum is σ = 4143104. Its totient is φ = 870912.

The previous prime is 2051801. The next prime is 2051821. The reversal of 2051812 is 2181502.

It is a self number, because there is not a number n which added to its sum of digits gives 2051812.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3268 + ... + 3844.

2^2051812 is an apocalyptic number.

It is an amenable number.

2051812 is an abundant number, since it is smaller than the sum of its proper divisors (2091292).

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

2051812 is a wasteful number, since it uses less digits than its factorization.

2051812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2051812 is about 1432.4147444089. The cubic root of 2051812 is about 127.0708266351.

The spelling of 2051812 in words is "two million, fifty-one thousand, eight hundred twelve".