42284239 has 2 divisors, whose sum is σ = 42284240. Its totient is φ = 42284238.

The previous prime is 42284237. The next prime is 42284251. The reversal of 42284239 is 93248224.

42284239 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 42284239 - 2¹ = 42284237 is a prime.

Together with 42284237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42284237) 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, 21142119 + 21142120.

It is an arithmetic number, because the mean of its divisors is an integer number (21142120).

Almost surely, 2^42284239 is an apocalyptic number.

42284239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42284239 is an equidigital number, since it uses as much as digits as its factorization.

42284239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 42284239 is about 6502.6332358515. The cubic root of 42284239 is about 348.3850468972.

The spelling of 42284239 in words is "forty-two million, two hundred eighty-four thousand, two hundred thirty-nine".