42422903 has 2 divisors, whose sum is σ = 42422904. Its totient is φ = 42422902.

The previous prime is 42422893. The next prime is 42422917. The reversal of 42422903 is 30922424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42422903 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42422203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211451 + 21211452.

It is an arithmetic number, because the mean of its divisors is an integer number (21211452).

Almost surely, 2^42422903 is an apocalyptic number.

42422903 is a deficient number, since it is larger than the sum of its proper divisors (1).

42422903 is an equidigital number, since it uses as much as digits as its factorization.

42422903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42422903 is about 6513.2866511463. The cubic root of 42422903 is about 348.7654546236.

The spelling of 42422903 in words is "forty-two million, four hundred twenty-two thousand, nine hundred three".