42188116 has 6 divisors (see below), whose sum is σ = 73829210. Its totient is φ = 21094056.

The previous prime is 42188051. The next prime is 42188131. The reversal of 42188116 is 61188124.

42188116 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 only one way, i.e., 31922500 + 10265616 = 5650^2 + 3204^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5273511 + ... + 5273518.

Almost surely, 2^42188116 is an apocalyptic number.

It is an amenable number.

42188116 is a deficient number, since it is larger than the sum of its proper divisors (31641094).

42188116 is a wasteful number, since it uses less digits than its factorization.

42188116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10547033 (or 10547031 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 42188116 is about 6495.2379479123. The cubic root of 42188116 is about 348.1208568645.

The spelling of 42188116 in words is "forty-two million, one hundred eighty-eight thousand, one hundred sixteen".