42684171 has 8 divisors (see below), whose sum is σ = 57499344. Its totient is φ = 28162560.

The previous prime is 42684167. The next prime is 42684209. The reversal of 42684171 is 17148624.

42684171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42684171 - 2² = 42684167 is a prime.

It is a super-3 number, since 3×42684171³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42684371) by changing a digit.

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, 73050 + ... + 73631.

It is an arithmetic number, because the mean of its divisors is an integer number (7187418).

Almost surely, 2^42684171 is an apocalyptic number.

42684171 is a deficient number, since it is larger than the sum of its proper divisors (14815173).

42684171 is a wasteful number, since it uses less digits than its factorization.

42684171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146781.

The product of its digits is 10752, while the sum is 33.

The square root of 42684171 is about 6533.3124064291. The cubic root of 42684171 is about 349.4799651226.

The spelling of 42684171 in words is "forty-two million, six hundred eighty-four thousand, one hundred seventy-one".