82105422 has 64 divisors (see below), whose sum is σ = 203980800. Its totient is φ = 21500640.

The previous prime is 82105417. The next prime is 82105477. The reversal of 82105422 is 22450128.

It is a junction number, because it is equal to n+sod(n) for n = 82105392 and 82105401.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23079 + ... + 26397.

It is an arithmetic number, because the mean of its divisors is an integer number (3187200).

Almost surely, 2^82105422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82105422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101990400).

82105422 is an abundant number, since it is smaller than the sum of its proper divisors (121875378).

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

82105422 is a wasteful number, since it uses less digits than its factorization.

82105422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 82105422 is about 9061.2042246050. The cubic root of 82105422 is about 434.6342493054.

The spelling of 82105422 in words is "eighty-two million, one hundred five thousand, four hundred twenty-two".