442113444020 has 12 divisors (see below), whose sum is σ = 928438232484. Its totient is φ = 176845377600.

The previous prime is 442113443923. The next prime is 442113444079. The reversal of 442113444020 is 20444311244.

It can be written as a sum of positive squares in 2 ways, for example, as 77638020496 + 364475423524 = 278636^2 + 603718^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11052836081 + ... + 11052836120.

It is an arithmetic number, because the mean of its divisors is an integer number (77369852707).

Almost surely, 2^442113444020 is an apocalyptic number.

It is an amenable number.

442113444020 is an abundant number, since it is smaller than the sum of its proper divisors (486324788464).

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

442113444020 is a wasteful number, since it uses less digits than its factorization.

442113444020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22105672210 (or 22105672208 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 442113444020 its reverse (20444311244), we get a palindrome (462557755264).

The spelling of 442113444020 in words is "four hundred forty-two billion, one hundred thirteen million, four hundred forty-four thousand, twenty".