1144404423 has 16 divisors (see below), whose sum is σ = 1736767200. Its totient is φ = 744327360.

The previous prime is 1144404403. The next prime is 1144404433. The reversal of 1144404423 is 3244044411.

It is not a de Polignac number, because 1144404423 - 2²⁰ = 1143355847 is a prime.

It is a super-2 number, since 2×1144404423² = 2619322966763925858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144404403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515788 + ... + 518001.

It is an arithmetic number, because the mean of its divisors is an integer number (108547950).

Almost surely, 2^1144404423 is an apocalyptic number.

1144404423 is a deficient number, since it is larger than the sum of its proper divisors (592362777).

1144404423 is a wasteful number, since it uses less digits than its factorization.

1144404423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033839 (or 1033833 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1144404423 is about 33829.0470306215. The cubic root of 1144404423 is about 1045.9875352987.

Adding to 1144404423 its reverse (3244044411), we get a palindrome (4388448834).

The spelling of 1144404423 in words is "one billion, one hundred forty-four million, four hundred four thousand, four hundred twenty-three".