445210022 has 8 divisors (see below), whose sum is σ = 669740616. Its totient is φ = 221963152.

The previous prime is 445210019. The next prime is 445210027. The reversal of 445210022 is 220012544.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 445209976 and 445210003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445210027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320063 + ... + 321450.

It is an arithmetic number, because the mean of its divisors is an integer number (83717577).

Almost surely, 2^445210022 is an apocalyptic number.

445210022 is a deficient number, since it is larger than the sum of its proper divisors (224530594).

445210022 is a wasteful number, since it uses less digits than its factorization.

445210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641862.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 445210022 is about 21100.0005213270. Note that the first 3 decimals coincide. The cubic root of 445210022 is about 763.5807607775.

Adding to 445210022 its reverse (220012544), we get a palindrome (665222566).

The spelling of 445210022 in words is "four hundred forty-five million, two hundred ten thousand, twenty-two".