82239318 has 48 divisors (see below), whose sum is σ = 206452896. Its totient is φ = 23172480.

The previous prime is 82239307. The next prime is 82239323. The reversal of 82239318 is 81393228.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4728 + ... + 13668.

It is an arithmetic number, because the mean of its divisors is an integer number (4301102).

Almost surely, 2^82239318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82239318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103226448).

82239318 is an abundant number, since it is smaller than the sum of its proper divisors (124213578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82239318 is a wasteful number, since it uses less digits than its factorization.

82239318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029 (or 9026 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 82239318 is about 9068.5896367627. The cubic root of 82239318 is about 434.8703854816.

The spelling of 82239318 in words is "eighty-two million, two hundred thirty-nine thousand, three hundred eighteen".