442404224020 has 48 divisors (see below), whose sum is σ = 1013843109888. Its totient is φ = 160821048960.

The previous prime is 442404223997. The next prime is 442404224063. The reversal of 442404224020 is 20422404244.

It is a self number, because there is not a number n which added to its sum of digits gives 442404224020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337069 + ... + 999211.

It is an arithmetic number, because the mean of its divisors is an integer number (21121731456).

Almost surely, 2^442404224020 is an apocalyptic number.

It is an amenable number.

442404224020 is an abundant number, since it is smaller than the sum of its proper divisors (571438885868).

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

442404224020 is a wasteful number, since it uses less digits than its factorization.

442404224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665200 (or 665198 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 442404224020 its reverse (20422404244), we get a palindrome (462826628264).

The spelling of 442404224020 in words is "four hundred forty-two billion, four hundred four million, two hundred twenty-four thousand, twenty".