82140396 has 96 divisors (see below), whose sum is σ = 223534080. Its totient is φ = 23245824.

The previous prime is 82140391. The next prime is 82140419. The reversal of 82140396 is 69304128.

It is not an unprimeable number, because it can be changed into a prime (82140391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124315 + ... + 124973.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^82140396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82140396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111767040).

82140396 is an abundant number, since it is smaller than the sum of its proper divisors (141393684).

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

82140396 is a wasteful number, since it uses less digits than its factorization.

82140396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 82140396 is about 9063.1338950718. The cubic root of 82140396 is about 434.6959534739.

The spelling of 82140396 in words is "eighty-two million, one hundred forty thousand, three hundred ninety-six".