42444203 has 2 divisors, whose sum is σ = 42444204. Its totient is φ = 42444202.

The previous prime is 42444191. The next prime is 42444221. The reversal of 42444203 is 30244424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42444203 - 2¹⁰ = 42443179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42444253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222101 + 21222102.

It is an arithmetic number, because the mean of its divisors is an integer number (21222102).

Almost surely, 2^42444203 is an apocalyptic number.

42444203 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444203 is an equidigital number, since it uses as much as digits as its factorization.

42444203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 42444203 is about 6514.9215651457. The cubic root of 42444203 is about 348.8238150902.

Adding to 42444203 its reverse (30244424), we get a palindrome (72688627).

The spelling of 42444203 in words is "forty-two million, four hundred forty-four thousand, two hundred three".