2056806 has 32 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 668160.

The previous prime is 2056787. The next prime is 2056829. The reversal of 2056806 is 6086502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2056806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (146475).

2^2056806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2056806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2343600).

2056806 is an abundant number, since it is smaller than the sum of its proper divisors (2630394).

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

2056806 is a wasteful number, since it uses less digits than its factorization.

2056806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2056806 is about 1434.1568951827. The cubic root of 2056806 is about 127.1738376239.

The spelling of 2056806 in words is "two million, fifty-six thousand, eight hundred six".