1444144411 has 4 divisors (see below), whose sum is σ = 1462424800. Its totient is φ = 1425864024.

The previous prime is 1444144409. The next prime is 1444144433. The reversal of 1444144411 is 1144414441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1144414441 = 19 ⋅60232339.

It is a cyclic number.

It is not a de Polignac number, because 1444144411 - 2¹ = 1444144409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444144411.

It is not an unprimeable number, because it can be changed into a prime (1444142411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9140076 + ... + 9140233.

It is an arithmetic number, because the mean of its divisors is an integer number (365606200).

Almost surely, 2^1444144411 is an apocalyptic number.

1444144411 is a deficient number, since it is larger than the sum of its proper divisors (18280389).

1444144411 is an equidigital number, since it uses as much as digits as its factorization.

1444144411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280388.

The product of its digits is 4096, while the sum is 28.

The square root of 1444144411 is about 38001.9000972320. The cubic root of 1444144411 is about 1130.3255414683.

Adding to 1444144411 its reverse (1144414441), we get a palindrome (2588558852).

The spelling of 1444144411 in words is "one billion, four hundred forty-four million, one hundred forty-four thousand, four hundred eleven".