4240043 has 2 divisors, whose sum is σ = 4240044. Its totient is φ = 4240042.

The previous prime is 4240037. The next prime is 4240063. The reversal of 4240043 is 3400424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4240043 - 2⁶ = 4239979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4240063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120021 + 2120022.

It is an arithmetic number, because the mean of its divisors is an integer number (2120022).

Almost surely, 2^4240043 is an apocalyptic number.

4240043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240043 is an equidigital number, since it uses as much as digits as its factorization.

4240043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4240043 is about 2059.1364694939. The cubic root of 4240043 is about 161.8539938356.

Adding to 4240043 its reverse (3400424), we get a palindrome (7640467).

The spelling of 4240043 in words is "four million, two hundred forty thousand, forty-three".