3840043 has 2 divisors, whose sum is σ = 3840044. Its totient is φ = 3840042.

The previous prime is 3840037. The next prime is 3840059. The reversal of 3840043 is 3400483.

3840043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3840043 is a prime.

3840043 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3839996 and 3840023.

It is not a weakly prime, because it can be changed into another prime (3820043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920021 + 1920022.

It is an arithmetic number, because the mean of its divisors is an integer number (1920022).

Almost surely, 2^3840043 is an apocalyptic number.

3840043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840043 is an equidigital number, since it uses as much as digits as its factorization.

3840043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3840043 is about 1959.6027658686. The cubic root of 3840043 is about 156.5952901561.

The spelling of 3840043 in words is "three million, eight hundred forty thousand, forty-three".