444303140021020 has 96 divisors (see below), whose sum is σ = 1122457094438400. Its totient is φ = 144314097617664.

The previous prime is 444303140020933. The next prime is 444303140021021. The reversal of 444303140021020 is 20120041303444.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 444303140021020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444303140021021) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 519451066 + ... + 520305694.

It is an arithmetic number, because the mean of its divisors is an integer number (11692261400400).

Almost surely, 2^{444303140021020} is an apocalyptic number.

It is an amenable number.

444303140021020 is an abundant number, since it is smaller than the sum of its proper divisors (678153954417380).

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

444303140021020 is a wasteful number, since it uses less digits than its factorization.

444303140021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050107 (or 1050105 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 444303140021020 its reverse (20120041303444), we get a palindrome (464423181324464).

The spelling of 444303140021020 in words is "four hundred forty-four trillion, three hundred three billion, one hundred forty million, twenty-one thousand, twenty".