42163688 has 32 divisors (see below), whose sum is σ = 91839360. Its totient is φ = 17772480.

The previous prime is 42163657. The next prime is 42163697. The reversal of 42163688 is 88636124.

It is a happy number.

42163688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42163688² = 3555553171522688, which contains 22 as substring.

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, 2756 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (2869980).

Almost surely, 2^42163688 is an apocalyptic number.

It is an amenable number.

42163688 is an abundant number, since it is smaller than the sum of its proper divisors (49675672).

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

42163688 is a wasteful number, since it uses less digits than its factorization.

42163688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12417 (or 12413 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 42163688 is about 6493.3572210375. The cubic root of 42163688 is about 348.0536535938.

The spelling of 42163688 in words is "forty-two million, one hundred sixty-three thousand, six hundred eighty-eight".