82590222 has 32 divisors (see below), whose sum is σ = 194060160. Its totient is φ = 23101920.

The previous prime is 82590203. The next prime is 82590227. The reversal of 82590222 is 22209528.

It is a super-2 number, since 2×82590222² = 13642289540018568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82590222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82590227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47272 + ... + 48987.

It is an arithmetic number, because the mean of its divisors is an integer number (6064380).

Almost surely, 2^82590222 is an apocalyptic number.

82590222 is an abundant number, since it is smaller than the sum of its proper divisors (111469938).

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

82590222 is a wasteful number, since it uses less digits than its factorization.

82590222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96288.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 82590222 is about 9087.9162628184. The cubic root of 82590222 is about 435.4880188169.

The spelling of 82590222 in words is "eighty-two million, five hundred ninety thousand, two hundred twenty-two".