42116090 has 8 divisors (see below), whose sum is σ = 75808980. Its totient is φ = 16846432.

The previous prime is 42116083. The next prime is 42116093. The reversal of 42116090 is 9061124.

It is a happy number.

42116090 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 39778249 + 2337841 = 6307^2 + 1529^2 .

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 (42116093) 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, 2105795 + ... + 2105814.

Almost surely, 2^42116090 is an apocalyptic number.

42116090 is a deficient number, since it is larger than the sum of its proper divisors (33692890).

42116090 is a wasteful number, since it uses less digits than its factorization.

42116090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211616.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 42116090 is about 6489.6910558208. The cubic root of 42116090 is about 347.9226333055.

It can be divided in two parts, 4211 and 6090, that added together give a palindrome (10301).

The spelling of 42116090 in words is "forty-two million, one hundred sixteen thousand, ninety".