82568442 has 16 divisors (see below), whose sum is σ = 180149472. Its totient is φ = 25020720.

The previous prime is 82568429. The next prime is 82568449. The reversal of 82568442 is 24486528.

It is a super-2 number, since 2×82568442² = 13635095228614728, 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 82568442.

It is not an unprimeable number, because it can be changed into a prime (82568449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 625453 + ... + 625584.

It is an arithmetic number, because the mean of its divisors is an integer number (11259342).

Almost surely, 2^82568442 is an apocalyptic number.

82568442 is an abundant number, since it is smaller than the sum of its proper divisors (97581030).

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

82568442 is a wasteful number, since it uses less digits than its factorization.

82568442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251053.

The product of its digits is 122880, while the sum is 39.

The square root of 82568442 is about 9086.7178893152. The cubic root of 82568442 is about 435.4497343699.

The spelling of 82568442 in words is "eighty-two million, five hundred sixty-eight thousand, four hundred forty-two".