42040115 has 8 divisors (see below), whose sum is σ = 54328848. Its totient is φ = 31044960.

The previous prime is 42040109. The next prime is 42040121. The reversal of 42040115 is 51104024.

42040115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42040109) and next prime (42040121).

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

It is not a de Polignac number, because 42040115 - 2⁶ = 42040051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42040093 and 42040102.

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 7 ways as a sum of consecutive naturals, for example, 323321 + ... + 323450.

It is an arithmetic number, because the mean of its divisors is an integer number (6791106).

Almost surely, 2^42040115 is an apocalyptic number.

42040115 is a deficient number, since it is larger than the sum of its proper divisors (12288733).

42040115 is a wasteful number, since it uses less digits than its factorization.

42040115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646789.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42040115 is about 6483.8348991935. The cubic root of 42040115 is about 347.7132965825.

Adding to 42040115 its reverse (51104024), we get a palindrome (93144139).

The spelling of 42040115 in words is "forty-two million, forty thousand, one hundred fifteen".