42042168 has 48 divisors (see below), whose sum is σ = 130132080. Its totient is φ = 12011904.

The previous prime is 42042167. The next prime is 42042191. The reversal of 42042168 is 86124024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42042167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41205 + ... + 42212.

It is an arithmetic number, because the mean of its divisors is an integer number (2711085).

Almost surely, 2^42042168 is an apocalyptic number.

It is an amenable number.

42042168 is an abundant number, since it is smaller than the sum of its proper divisors (88089912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42042168 is a wasteful number, since it uses less digits than its factorization.

42042168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83436 (or 83429 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42042168 is about 6483.9932140618. The cubic root of 42042168 is about 347.7189566033.

The spelling of 42042168 in words is "forty-two million, forty-two thousand, one hundred sixty-eight".