445022 has 4 divisors (see below), whose sum is σ = 667536. Its totient is φ = 222510.

The previous prime is 445021. The next prime is 445031. The reversal of 445022 is 220544.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111254 + ... + 111257.

It is an arithmetic number, because the mean of its divisors is an integer number (166884).

2⁴⁴⁵⁰²² is an apocalyptic number.

445022 is a deficient number, since it is larger than the sum of its proper divisors (222514).

445022 is a wasteful number, since it uses less digits than its factorization.

445022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222513.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 445022 is about 667.0996926997. The cubic root of 445022 is about 76.3473253316.

Adding to 445022 its reverse (220544), we get a palindrome (665566).

The spelling of 445022 in words is "four hundred forty-five thousand, twenty-two".