42439255 has 16 divisors (see below), whose sum is σ = 55941120. Its totient is φ = 30764448.

The previous prime is 42439249. The next prime is 42439307. The reversal of 42439255 is 55293424.

42439255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42439255 - 2³ = 42439247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42439255.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 7527 + ... + 11896.

It is an arithmetic number, because the mean of its divisors is an integer number (3496320).

Almost surely, 2^42439255 is an apocalyptic number.

42439255 is a deficient number, since it is larger than the sum of its proper divisors (13501865).

42439255 is a wasteful number, since it uses less digits than its factorization.

42439255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19470.

The product of its digits is 43200, while the sum is 34.

The square root of 42439255 is about 6514.5418104422. The cubic root of 42439255 is about 348.8102596677.

The spelling of 42439255 in words is "forty-two million, four hundred thirty-nine thousand, two hundred fifty-five".