42008339 has 2 divisors, whose sum is σ = 42008340. Its totient is φ = 42008338.

The previous prime is 42008311. The next prime is 42008341. The reversal of 42008339 is 93380024.

42008339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42008339 is a prime.

It is a Sophie Germain prime.

Together with 42008341, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2548082 and since 42008339 and 2548082 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42008399) 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, 21004169 + 21004170.

It is an arithmetic number, because the mean of its divisors is an integer number (21004170).

Almost surely, 2^42008339 is an apocalyptic number.

42008339 is a deficient number, since it is larger than the sum of its proper divisors (1).

42008339 is an equidigital number, since it uses as much as digits as its factorization.

42008339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 42008339 is about 6481.3840342939. The cubic root of 42008339 is about 347.6256681934.

The spelling of 42008339 in words is "forty-two million, eight thousand, three hundred thirty-nine".