442541321220 has 48 divisors (see below), whose sum is σ = 1239147705600. Its totient is φ = 118007970816.

The previous prime is 442541321203. The next prime is 442541321227. The reversal of 442541321220 is 22123145244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (442541321227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3174709 + ... + 3311171.

It is an arithmetic number, because the mean of its divisors is an integer number (25815577200).

Almost surely, 2^442541321220 is an apocalyptic number.

It is an amenable number.

442541321220 is an abundant number, since it is smaller than the sum of its proper divisors (796606384380).

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

442541321220 is a wasteful number, since it uses less digits than its factorization.

442541321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190524 (or 190522 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 442541321220 its reverse (22123145244), we get a palindrome (464664466464).

The spelling of 442541321220 in words is "four hundred forty-two billion, five hundred forty-one million, three hundred twenty-one thousand, two hundred twenty".