82266278 has 4 divisors (see below), whose sum is σ = 123399420. Its totient is φ = 41133138.

The previous prime is 82266277. The next prime is 82266293. The reversal of 82266278 is 87266228.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82266277) 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 as a sum of consecutive naturals, namely, 20566568 + ... + 20566571.

It is an arithmetic number, because the mean of its divisors is an integer number (30849855).

Almost surely, 2^82266278 is an apocalyptic number.

82266278 is a deficient number, since it is larger than the sum of its proper divisors (41133142).

82266278 is a wasteful number, since it uses less digits than its factorization.

82266278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41133141.

The product of its digits is 129024, while the sum is 41.

The square root of 82266278 is about 9070.0759644007. The cubic root of 82266278 is about 434.9179005671.

The spelling of 82266278 in words is "eighty-two million, two hundred sixty-six thousand, two hundred seventy-eight".