It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1444004421 = 3 ⋅481334807.
It is a cyclic number.
It is a Curzon number.
Almost surely, 21244004441 is an apocalyptic number.
It is an amenable number.
1244004441 is an equidigital number, since it uses as much as digits as its factorization.
1244004441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414668150.
The square root of 1244004441 is about 35270.4471335423. The cubic root of 1244004441 is about 1075.4923120198.
Adding to 1244004441 its reverse (1444004421), we get a palindrome (2688008862).
The spelling of 1244004441 in words is "one billion, two hundred forty-four million, four thousand, four hundred forty-one".