42008871 has 8 divisors (see below), whose sum is σ = 56296944. Its totient is φ = 27863360.

The previous prime is 42008843. The next prime is 42008881. The reversal of 42008871 is 17880024.

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 42008871 - 2¹¹ = 42006823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42008881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34950 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (7037118).

Almost surely, 2^42008871 is an apocalyptic number.

42008871 is a deficient number, since it is larger than the sum of its proper divisors (14288073).

42008871 is a wasteful number, since it uses less digits than its factorization.

42008871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71281.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 42008871 is about 6481.4250747810. The cubic root of 42008871 is about 347.6271356487.

Adding to 42008871 its reverse (17880024), we get a palindrome (59888895).

The spelling of 42008871 in words is "forty-two million, eight thousand, eight hundred seventy-one".