1144445441 has 8 divisors (see below), whose sum is σ = 1169272704. Its totient is φ = 1119638160.

The previous prime is 1144445437. The next prime is 1144445453. The reversal of 1144445441 is 1445444411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144445441 - 2² = 1144445437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1144445398 and 1144445407.

It is not an unprimeable number, because it can be changed into a prime (1144445041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202271 + ... + 207851.

It is an arithmetic number, because the mean of its divisors is an integer number (146159088).

Almost surely, 2^1144445441 is an apocalyptic number.

It is an amenable number.

1144445441 is a deficient number, since it is larger than the sum of its proper divisors (24827263).

1144445441 is an equidigital number, since it uses as much as digits as its factorization.

1144445441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991.

The product of its digits is 20480, while the sum is 32.

The square root of 1144445441 is about 33829.6532793347. The cubic root of 1144445441 is about 1046.0000319893. Note that the first 4 decimals are identical.

Adding to 1144445441 its reverse (1445444411), we get a palindrome (2589889852).

The spelling of 1144445441 in words is "one billion, one hundred forty-four million, four hundred forty-five thousand, four hundred forty-one".