2244544421 has 12 divisors (see below), whose sum is σ = 2649974688. Its totient is φ = 1895177592.

The previous prime is 2244544417. The next prime is 2244544433. The reversal of 2244544421 is 1244454422.

It is not a de Polignac number, because 2244544421 - 2² = 2244544417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244544451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338561 + ... + 345126.

It is an arithmetic number, because the mean of its divisors is an integer number (220831224).

Almost surely, 2^2244544421 is an apocalyptic number.

It is an amenable number.

2244544421 is a deficient number, since it is larger than the sum of its proper divisors (405430267).

2244544421 is an equidigital number, since it uses as much as digits as its factorization.

2244544421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683768 (or 683761 counting only the distinct ones).

The product of its digits is 40960, while the sum is 32.

The square root of 2244544421 is about 47376.6231489751. The cubic root of 2244544421 is about 1309.3107539073.

Adding to 2244544421 its reverse (1244454422), we get a palindrome (3488998843).

It can be divided in two parts, 22445 and 44421, that added together give a palindrome (66866).

The spelling of 2244544421 in words is "two billion, two hundred forty-four million, five hundred forty-four thousand, four hundred twenty-one".