444144441 has 8 divisors (see below), whose sum is σ = 637745920. Its totient is φ = 273319632.

The previous prime is 444144439. The next prime is 444144461. The reversal of 444144441 is 144441444.

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

It is not a de Polignac number, because 444144441 - 2¹ = 444144439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444144399 and 444144408.

It is not an unprimeable number, because it can be changed into a prime (444144461) 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, 5694121 + ... + 5694198.

It is an arithmetic number, because the mean of its divisors is an integer number (79718240).

Almost surely, 2^444144441 is an apocalyptic number.

It is an amenable number.

444144441 is a deficient number, since it is larger than the sum of its proper divisors (193601479).

444144441 is a wasteful number, since it uses less digits than its factorization.

444144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11388335.

The product of its digits is 16384, while the sum is 30.

The square root of 444144441 is about 21074.7346602514. The cubic root of 444144441 is about 762.9710806116.

Adding to 444144441 its reverse (144441444), we get a palindrome (588585885).

The spelling of 444144441 in words is "four hundred forty-four million, one hundred forty-four thousand, four hundred forty-one".