2042843 has 6 divisors (see below), whose sum is σ = 2245572. Its totient is φ = 1857020.

The previous prime is 2042819. The next prime is 2042849. The reversal of 2042843 is 3482402.

It is not a de Polignac number, because 2042843 - 2⁸ = 2042587 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2042849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8321 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (374262).

2^2042843 is an apocalyptic number.

2042843 is a deficient number, since it is larger than the sum of its proper divisors (202729).

2042843 is a wasteful number, since it uses less digits than its factorization.

2042843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905 (or 16894 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2042843 is about 1429.2805882681. The cubic root of 2042843 is about 126.8854030636.

The spelling of 2042843 in words is "two million, forty-two thousand, eight hundred forty-three".