82074218 has 16 divisors (see below), whose sum is σ = 125526240. Its totient is φ = 40239696.

The previous prime is 82074217. The next prime is 82074227. The reversal of 82074218 is 81247028.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82074217) 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, 21296 + ... + 24852.

It is an arithmetic number, because the mean of its divisors is an integer number (7845390).

Almost surely, 2^82074218 is an apocalyptic number.

82074218 is a deficient number, since it is larger than the sum of its proper divisors (43452022).

82074218 is a wasteful number, since it uses less digits than its factorization.

82074218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 82074218 is about 9059.4822147847. The cubic root of 82074218 is about 434.5791817054.

The spelling of 82074218 in words is "eighty-two million, seventy-four thousand, two hundred eighteen".