42086869 has 8 divisors (see below), whose sum is σ = 47033280. Its totient is φ = 37327200.

The previous prime is 42086867. The next prime is 42086873. The reversal of 42086869 is 96868024.

It is a happy number.

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 42086869 - 2¹ = 42086867 is a prime.

It is a super-2 number, since 2×42086869² = 3542609084446322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42086867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46209 + ... + 47110.

It is an arithmetic number, because the mean of its divisors is an integer number (5879160).

Almost surely, 2^42086869 is an apocalyptic number.

It is an amenable number.

42086869 is a deficient number, since it is larger than the sum of its proper divisors (4946411).

42086869 is a wasteful number, since it uses less digits than its factorization.

42086869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93371.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 42086869 is about 6487.4393253425. The cubic root of 42086869 is about 347.8421494220.

The spelling of 42086869 in words is "forty-two million, eighty-six thousand, eight hundred sixty-nine".