2042806 has 4 divisors (see below), whose sum is σ = 3064212. Its totient is φ = 1021402.

The previous prime is 2042797. The next prime is 2042809. The reversal of 2042806 is 6082402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510700 + ... + 510703.

It is an arithmetic number, because the mean of its divisors is an integer number (766053).

2^2042806 is an apocalyptic number.

2042806 is a deficient number, since it is larger than the sum of its proper divisors (1021406).

2042806 is a wasteful number, since it uses less digits than its factorization.

2042806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021405.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2042806 is about 1429.2676446348. The cubic root of 2042806 is about 126.8846370089.

The spelling of 2042806 in words is "two million, forty-two thousand, eight hundred six".