538442227 has 2 divisors, whose sum is σ = 538442228. Its totient is φ = 538442226.

The previous prime is 538442153. The next prime is 538442243. The reversal of 538442227 is 722244835.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538442227 is a prime.

It is not a weakly prime, because it can be changed into another prime (538442287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269221113 + 269221114.

It is an arithmetic number, because the mean of its divisors is an integer number (269221114).

Almost surely, 2^538442227 is an apocalyptic number.

538442227 is a deficient number, since it is larger than the sum of its proper divisors (1).

538442227 is an equidigital number, since it uses as much as digits as its factorization.

538442227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 37.

The square root of 538442227 is about 23204.3579312163. The cubic root of 538442227 is about 813.5414851586.

The spelling of 538442227 in words is "five hundred thirty-eight million, four hundred forty-two thousand, two hundred twenty-seven".