4042943 has 2 divisors, whose sum is σ = 4042944. Its totient is φ = 4042942.

The previous prime is 4042939. The next prime is 4042967. The reversal of 4042943 is 3492404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4042943 - 2² = 4042939 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021471 + 2021472.

It is an arithmetic number, because the mean of its divisors is an integer number (2021472).

Almost surely, 2^4042943 is an apocalyptic number.

4042943 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042943 is an equidigital number, since it uses as much as digits as its factorization.

4042943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4042943 is about 2010.7070895583. The cubic root of 4042943 is about 159.3061490633.

The spelling of 4042943 in words is "four million, forty-two thousand, nine hundred forty-three".