445422 has 16 divisors (see below), whose sum is σ = 906192. Its totient is φ = 145920.

The previous prime is 445363. The next prime is 445427. The reversal of 445422 is 224544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445427) by changing a digit.

445422 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 7 ways as a sum of consecutive naturals, for example, 243 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (56637).

2⁴⁴⁵⁴²² is an apocalyptic number.

445422 is an abundant number, since it is smaller than the sum of its proper divisors (460770).

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

445422 is a wasteful number, since it uses less digits than its factorization.

445422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its digits is 1280, while the sum is 21.

The square root of 445422 is about 667.3994306261. The cubic root of 445422 is about 76.3701929538.

Adding to 445422 its reverse (224544), we get a palindrome (669966).

It can be divided in two parts, 44542 and 2, that added together give a palindrome (44544).

The spelling of 445422 in words is "four hundred forty-five thousand, four hundred twenty-two".