42443603 has 2 divisors, whose sum is σ = 42443604. Its totient is φ = 42443602.

The previous prime is 42443581. The next prime is 42443633. The reversal of 42443603 is 30634424.

42443603 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 not a de Polignac number, because 42443603 - 2¹⁴ = 42427219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42443633) 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 as a sum of consecutive naturals, namely, 21221801 + 21221802.

It is an arithmetic number, because the mean of its divisors is an integer number (21221802).

Almost surely, 2^42443603 is an apocalyptic number.

42443603 is a deficient number, since it is larger than the sum of its proper divisors (1).

42443603 is an equidigital number, since it uses as much as digits as its factorization.

42443603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 42443603 is about 6514.8755168460. The cubic root of 42443603 is about 348.8221714007.

The spelling of 42443603 in words is "forty-two million, four hundred forty-three thousand, six hundred three".