42170168 has 32 divisors (see below), whose sum is σ = 82508160. Its totient is φ = 20183040.

The previous prime is 42170123. The next prime is 42170171. The reversal of 42170168 is 86107124.

42170168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42170168.

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 in 7 ways as a sum of consecutive naturals, for example, 23180 + ... + 24932.

It is an arithmetic number, because the mean of its divisors is an integer number (2578380).

Almost surely, 2^42170168 is an apocalyptic number.

It is an amenable number.

42170168 is a deficient number, since it is larger than the sum of its proper divisors (40337992).

42170168 is a wasteful number, since it uses less digits than its factorization.

42170168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 42170168 is about 6493.8561733380. The cubic root of 42170168 is about 348.0714830916.

The spelling of 42170168 in words is "forty-two million, one hundred seventy thousand, one hundred sixty-eight".