442021300220 has 48 divisors (see below), whose sum is σ = 958442354688. Its totient is φ = 171059618880.

The previous prime is 442021300187. The next prime is 442021300241. The reversal of 442021300220 is 22003120244.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 442021300192 and 442021300201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2292479 + ... + 2477801.

It is an arithmetic number, because the mean of its divisors is an integer number (19967549056).

Almost surely, 2^442021300220 is an apocalyptic number.

It is an amenable number.

442021300220 is an abundant number, since it is smaller than the sum of its proper divisors (516421054468).

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

442021300220 is a wasteful number, since it uses less digits than its factorization.

442021300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189210 (or 189208 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 442021300220 its reverse (22003120244), we get a palindrome (464024420464).

The spelling of 442021300220 in words is "four hundred forty-two billion, twenty-one million, three hundred thousand, two hundred twenty".