2243320420044 has 96 divisors (see below), whose sum is σ = 5779905465600. Its totient is φ = 671506528000.

The previous prime is 2243320420039. The next prime is 2243320420057. The reversal of 2243320420044 is 4400240233422.

It is a junction number, because it is equal to n+sod(n) for n = 2243320419993 and 2243320420020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119947894 + ... + 119966594.

It is an arithmetic number, because the mean of its divisors is an integer number (60207348600).

Almost surely, 2^{2243320420044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243320420044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889952732800).

2243320420044 is an abundant number, since it is smaller than the sum of its proper divisors (3536585045556).

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

2243320420044 is a wasteful number, since it uses less digits than its factorization.

2243320420044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29751 (or 29749 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 2243320420044 its reverse (4400240233422), we get a palindrome (6643560653466).

The spelling of 2243320420044 in words is "two trillion, two hundred forty-three billion, three hundred twenty million, four hundred twenty thousand, forty-four".