43240003 has 2 divisors, whose sum is σ = 43240004. Its totient is φ = 43240002.

The previous prime is 43239971. The next prime is 43240037. The reversal of 43240003 is 30004234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43240003 - 2⁵ = 43239971 is a prime.

It is not a weakly prime, because it can be changed into another prime (43210003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620001 + 21620002.

It is an arithmetic number, because the mean of its divisors is an integer number (21620002).

Almost surely, 2^43240003 is an apocalyptic number.

43240003 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240003 is an equidigital number, since it uses as much as digits as its factorization.

43240003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 43240003 is about 6575.7131172216. The cubic root of 43240003 is about 350.9904002483.

Adding to 43240003 its reverse (30004234), we get a palindrome (73244237).

The spelling of 43240003 in words is "forty-three million, two hundred forty thousand, three".