2043842 has 16 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 940608.

The previous prime is 2043841. The next prime is 2043851. The reversal of 2043842 is 2483402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043841) 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 7 ways as a sum of consecutive naturals, for example, 959 + ... + 2237.

It is an arithmetic number, because the mean of its divisors is an integer number (207360).

2^2043842 is an apocalyptic number.

2043842 is a deficient number, since it is larger than the sum of its proper divisors (1273918).

2043842 is a wasteful number, since it uses less digits than its factorization.

2043842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

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

The square root of 2043842 is about 1429.6300220686. The cubic root of 2043842 is about 126.9060830442.

The spelling of 2043842 in words is "two million, forty-three thousand, eight hundred forty-two".