42164868 has 12 divisors (see below), whose sum is σ = 98384720. Its totient is φ = 14054952.

The previous prime is 42164849. The next prime is 42164891. The reversal of 42164868 is 86846124.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756858 + ... + 1756881.

Almost surely, 2^42164868 is an apocalyptic number.

It is an amenable number.

42164868 is an abundant number, since it is smaller than the sum of its proper divisors (56219852).

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

42164868 is a wasteful number, since it uses less digits than its factorization.

42164868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513746 (or 3513744 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 42164868 is about 6493.4480824905. The cubic root of 42164868 is about 348.0569004594.

The spelling of 42164868 in words is "forty-two million, one hundred sixty-four thousand, eight hundred sixty-eight".