81882262 has 32 divisors (see below), whose sum is σ = 153964800. Its totient is φ = 31728480.

The previous prime is 81882247. The next prime is 81882293. The reversal of 81882262 is 26228818.

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 15 ways as a sum of consecutive naturals, for example, 28989 + ... + 31687.

It is an arithmetic number, because the mean of its divisors is an integer number (4811400).

Almost surely, 2^81882262 is an apocalyptic number.

81882262 is a deficient number, since it is larger than the sum of its proper divisors (72082538).

81882262 is a wasteful number, since it uses less digits than its factorization.

81882262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its digits is 24576, while the sum is 37.

The square root of 81882262 is about 9048.8818093729. The cubic root of 81882262 is about 434.2401178571.

The spelling of 81882262 in words is "eighty-one million, eight hundred eighty-two thousand, two hundred sixty-two".