42358439 has 2 divisors, whose sum is σ = 42358440. Its totient is φ = 42358438.

The previous prime is 42358409. The next prime is 42358489. The reversal of 42358439 is 93485324.

42358439 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 42358439 - 2¹² = 42354343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42358409) 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, 21179219 + 21179220.

It is an arithmetic number, because the mean of its divisors is an integer number (21179220).

Almost surely, 2^42358439 is an apocalyptic number.

42358439 is a deficient number, since it is larger than the sum of its proper divisors (1).

42358439 is an equidigital number, since it uses as much as digits as its factorization.

42358439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 42358439 is about 6508.3361160899. The cubic root of 42358439 is about 348.5887087916.

The spelling of 42358439 in words is "forty-two million, three hundred fifty-eight thousand, four hundred thirty-nine".