82018 has 8 divisors (see below), whose sum is σ = 128448. Its totient is φ = 39204.

The previous prime is 82013. The next prime is 82021. The reversal of 82018 is 81028.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 81986 and 82004.

It is not an unprimeable number, because it can be changed into a prime (82013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846 + ... + 937.

It is an arithmetic number, because the mean of its divisors is an integer number (16056).

2⁸²⁰¹⁸ is an apocalyptic number.

82018 is a deficient number, since it is larger than the sum of its proper divisors (46430).

82018 is a wasteful number, since it uses less digits than its factorization.

82018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 82018 is about 286.3878489042. The cubic root of 82018 is about 43.4479935140.

Subtracting from 82018 its reverse (81028), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 820 and 18, that added together give a palindrome (838).

The spelling of 82018 in words is "eighty-two thousand, eighteen".