42236239 has 2 divisors, whose sum is σ = 42236240. Its totient is φ = 42236238.

The previous prime is 42236231. The next prime is 42236251. The reversal of 42236239 is 93263224.

42236239 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 42236239 - 2³ = 42236231 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42236239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42236231) 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, 21118119 + 21118120.

It is an arithmetic number, because the mean of its divisors is an integer number (21118120).

Almost surely, 2^42236239 is an apocalyptic number.

42236239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42236239 is an equidigital number, since it uses as much as digits as its factorization.

42236239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 42236239 is about 6498.9413753318. The cubic root of 42236239 is about 348.2531710156.

The spelling of 42236239 in words is "forty-two million, two hundred thirty-six thousand, two hundred thirty-nine".