42686834 has 8 divisors (see below), whose sum is σ = 64298880.
Its totient is φ = 21253876.
The previous prime is 42686821. The next prime is 42686837. The reversal of 42686834 is 43868624.
42686834 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 a super-3 number, since 3×426868343 (a number of 24 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 42686791 and 42686800.
It is not an unprimeable number, because it can be changed into a prime (42686837) 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 3 ways as a sum of consecutive naturals, for example, 44174 + ... + 45129.
It is an arithmetic number, because the mean of its divisors is an integer number (8037360).
Almost surely, 242686834 is an apocalyptic number.
42686834 is a deficient number, since it is larger than the sum of its proper divisors (21612046).
42686834 is a wasteful number, since it uses less digits than its factorization.
42686834 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89544.
The product of its digits is 221184, while the sum is 41.
The square root of 42686834 is about 6533.5162049237.
The cubic root of 42686834 is about 349.4872328112.
The spelling of 42686834 in words is "forty-two million, six hundred eighty-six thousand, eight hundred thirty-four".