445822 has 12 divisors (see below), whose sum is σ = 724680. Its totient is φ = 205608.

The previous prime is 445807. The next prime is 445829. The reversal of 445822 is 228544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445829) by changing a digit.

445822 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 322 + ... + 997.

It is an arithmetic number, because the mean of its divisors is an integer number (60390).

2⁴⁴⁵⁸²² is an apocalyptic number.

445822 is a deficient number, since it is larger than the sum of its proper divisors (278858).

445822 is a wasteful number, since it uses less digits than its factorization.

445822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 1334 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 445822 is about 667.6990339966. The cubic root of 445822 is about 76.3930468897.

The spelling of 445822 in words is "four hundred forty-five thousand, eight hundred twenty-two".