82266438 has 16 divisors (see below), whose sum is σ = 166382640. Its totient is φ = 27113856.

The previous prime is 82266433. The next prime is 82266449. The reversal of 82266438 is 83466228.

It is a junction number, because it is equal to n+sod(n) for n = 82266396 and 82266405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82266433) 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 7 ways as a sum of consecutive naturals, for example, 76495 + ... + 77562.

It is an arithmetic number, because the mean of its divisors is an integer number (10398915).

Almost surely, 2^82266438 is an apocalyptic number.

82266438 is an abundant number, since it is smaller than the sum of its proper divisors (84116202).

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

82266438 is a wasteful number, since it uses less digits than its factorization.

82266438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154151.

The product of its digits is 110592, while the sum is 39.

The square root of 82266438 is about 9070.0847846092. The cubic root of 82266438 is about 434.9181825248.

The spelling of 82266438 in words is "eighty-two million, two hundred sixty-six thousand, four hundred thirty-eight".