42040117 has 8 divisors (see below), whose sum is σ = 48093696. Its totient is φ = 35998512.

The previous prime is 42040109. The next prime is 42040121. The reversal of 42040117 is 71104024.

42040117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42040117 - 2³ = 42040109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42040094 and 42040103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040157) 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, 6588 + ... + 11290.

It is an arithmetic number, because the mean of its divisors is an integer number (6011712).

Almost surely, 2^42040117 is an apocalyptic number.

It is an amenable number.

42040117 is a deficient number, since it is larger than the sum of its proper divisors (6053579).

42040117 is a wasteful number, since it uses less digits than its factorization.

42040117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42040117 is about 6483.8350534232. The cubic root of 42040117 is about 347.7133020965.

The spelling of 42040117 in words is "forty-two million, forty thousand, one hundred seventeen".