82122238 has 16 divisors (see below), whose sum is σ = 136085760. Its totient is φ = 36855000.

The previous prime is 82122233. The next prime is 82122239. The reversal of 82122238 is 83222128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82122233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21888 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (8505360).

Almost surely, 2^82122238 is an apocalyptic number.

82122238 is a deficient number, since it is larger than the sum of its proper divisors (53963522).

82122238 is a wasteful number, since it uses less digits than its factorization.

82122238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47343.

The product of its digits is 3072, while the sum is 28.

The square root of 82122238 is about 9062.1320890837. The cubic root of 82122238 is about 434.6639197398.

The spelling of 82122238 in words is "eighty-two million, one hundred twenty-two thousand, two hundred thirty-eight".