82004023408 has 60 divisors (see below), whose sum is σ = 168236034040. Its totient is φ = 38615194368.

The previous prime is 82004023403. The next prime is 82004023421. The reversal of 82004023408 is 80432040028.

It is a self number, because there is not a number n which added to its sum of digits gives 82004023408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82004023403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9093910 + ... + 9102922.

Almost surely, 2^82004023408 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 82004023408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84118017020).

82004023408 is an abundant number, since it is smaller than the sum of its proper divisors (86232010632).

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

82004023408 is a wasteful number, since it uses less digits than its factorization.

82004023408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386 (or 9207 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 82004023408 in words is "eighty-two billion, four million, twenty-three thousand, four hundred eight".