42335239 has 2 divisors, whose sum is σ = 42335240. Its totient is φ = 42335238.

The previous prime is 42335233. The next prime is 42335269. The reversal of 42335239 is 93253324.

42335239 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 42335239 - 2⁹ = 42334727 is a prime.

It is a super-2 number, since 2×42335239² = 3584544922374242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42335239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42335233) 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, 21167619 + 21167620.

It is an arithmetic number, because the mean of its divisors is an integer number (21167620).

Almost surely, 2^42335239 is an apocalyptic number.

42335239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42335239 is an equidigital number, since it uses as much as digits as its factorization.

42335239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 42335239 is about 6506.5535423909. The cubic root of 42335239 is about 348.5250557143.

The spelling of 42335239 in words is "forty-two million, three hundred thirty-five thousand, two hundred thirty-nine".