42116986 has 8 divisors (see below), whose sum is σ = 63211284. Its totient is φ = 21046560.

The previous prime is 42116983. The next prime is 42116999. The reversal of 42116986 is 68961124.

It is a happy number.

42116986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38675961 + 3441025 = 6219^2 + 1855^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42116981) 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 3 ways as a sum of consecutive naturals, for example, 585 + ... + 9196.

Almost surely, 2^42116986 is an apocalyptic number.

42116986 is a deficient number, since it is larger than the sum of its proper divisors (21094298).

42116986 is a wasteful number, since it uses less digits than its factorization.

42116986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11936.

The product of its digits is 20736, while the sum is 37.

The square root of 42116986 is about 6489.7600880156. The cubic root of 42116986 is about 347.9251005848.

The spelling of 42116986 in words is "forty-two million, one hundred sixteen thousand, nine hundred eighty-six".