82261266 has 16 divisors (see below), whose sum is σ = 174200544. Its totient is φ = 25807424.

The previous prime is 82261243. The next prime is 82261297. The reversal of 82261266 is 66216228.

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 7 ways as a sum of consecutive naturals, for example, 403140 + ... + 403343.

It is an arithmetic number, because the mean of its divisors is an integer number (10887534).

Almost surely, 2^82261266 is an apocalyptic number.

82261266 is an abundant number, since it is smaller than the sum of its proper divisors (91939278).

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

82261266 is a wasteful number, since it uses less digits than its factorization.

82261266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806505.

The product of its digits is 13824, while the sum is 33.

The square root of 82261266 is about 9069.7996670268. The cubic root of 82261266 is about 434.9090680587.

The spelling of 82261266 in words is "eighty-two million, two hundred sixty-one thousand, two hundred sixty-six".