2213004436544 has 42 divisors (see below), whose sum is σ = 4826944481982. Its totient is φ = 1005911104000.

The previous prime is 2213004436481. The next prime is 2213004436549. The reversal of 2213004436544 is 4456344003122.

It can be written as a sum of positive squares in only one way, i.e., 2071411777600 + 141592658944 = 1439240^2 + 376288^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2213004436498 and 2213004436507.

It is not an unprimeable number, because it can be changed into a prime (2213004436549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142877357 + ... + 142892844.

It is an arithmetic number, because the mean of its divisors is an integer number (114927249571).

Almost surely, 2^{2213004436544} is an apocalyptic number.

It is an amenable number.

2213004436544 is an abundant number, since it is smaller than the sum of its proper divisors (2613940045438).

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

2213004436544 is a wasteful number, since it uses less digits than its factorization.

2213004436544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285770235 (or 285770214 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 2213004436544 its reverse (4456344003122), we get a palindrome (6669348439666).

The spelling of 2213004436544 in words is "two trillion, two hundred thirteen billion, four million, four hundred thirty-six thousand, five hundred forty-four".