42317538 has 16 divisors (see below), whose sum is σ = 84774816. Its totient is φ = 14082560.

The previous prime is 42317533. The next prime is 42317557. The reversal of 42317538 is 83571324.

42317538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42317499 and 42317508.

It is not an unprimeable number, because it can be changed into a prime (42317533) 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 in 7 ways as a sum of consecutive naturals, for example, 1656 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (5298426).

Almost surely, 2^42317538 is an apocalyptic number.

42317538 is an abundant number, since it is smaller than the sum of its proper divisors (42457278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42317538 is a wasteful number, since it uses less digits than its factorization.

42317538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11649.

The product of its digits is 20160, while the sum is 33.

The square root of 42317538 is about 6505.1931562406. The cubic root of 42317538 is about 348.4764744207.

The spelling of 42317538 in words is "forty-two million, three hundred seventeen thousand, five hundred thirty-eight".