82442866 has 24 divisors (see below), whose sum is σ = 137315052. Its totient is φ = 37092000.

The previous prime is 82442863. The next prime is 82442891. The reversal of 82442866 is 66824428.

It can be written as a sum of positive squares in 2 ways, for example, as 53509225 + 28933641 = 7315^2 + 5379^2 .

It is not an unprimeable number, because it can be changed into a prime (82442861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22756 + ... + 26128.

Almost surely, 2^82442866 is an apocalyptic number.

82442866 is a deficient number, since it is larger than the sum of its proper divisors (54872186).

82442866 is a wasteful number, since it uses less digits than its factorization.

82442866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498 (or 3487 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 82442866 is about 9079.8053943903. The cubic root of 82442866 is about 435.2288679815.

The spelling of 82442866 in words is "eighty-two million, four hundred forty-two thousand, eight hundred sixty-six".