42171848 has 8 divisors (see below), whose sum is σ = 79072230. Its totient is φ = 21085920.

The previous prime is 42171809. The next prime is 42171853. The reversal of 42171848 is 84817124.

42171848 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., 40424164 + 1747684 = 6358^2 + 1322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 3.

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, 2635733 + ... + 2635748.

Almost surely, 2^42171848 is an apocalyptic number.

It is an amenable number.

42171848 is a deficient number, since it is larger than the sum of its proper divisors (36900382).

42171848 is a wasteful number, since it uses less digits than its factorization.

42171848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271487 (or 5271483 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 42171848 is about 6493.9855250840. The cubic root of 42171848 is about 348.0761052558.

The spelling of 42171848 in words is "forty-two million, one hundred seventy-one thousand, eight hundred forty-eight".