42684159 has 32 divisors (see below), whose sum is σ = 68935680. Its totient is φ = 22964832.

The previous prime is 42684149. The next prime is 42684167. The reversal of 42684159 is 95148624.

It is not a de Polignac number, because 42684159 - 2⁹ = 42683647 is a prime.

It is a super-3 number, since 3×42684159³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42684139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31702 + ... + 33020.

It is an arithmetic number, because the mean of its divisors is an integer number (2154240).

Almost surely, 2^42684159 is an apocalyptic number.

42684159 is a deficient number, since it is larger than the sum of its proper divisors (26251521).

42684159 is a wasteful number, since it uses less digits than its factorization.

42684159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its digits is 69120, while the sum is 39.

The square root of 42684159 is about 6533.3114880587. The cubic root of 42684159 is about 349.4799323723.

The spelling of 42684159 in words is "forty-two million, six hundred eighty-four thousand, one hundred fifty-nine".