1044144023 has 16 divisors (see below), whose sum is σ = 1134403200. Its totient is φ = 961028640.

The previous prime is 1044143981. The next prime is 1044144037. The reversal of 1044144023 is 3204414401.

It is a happy number.

It is not a de Polignac number, because 1044144023 - 2²² = 1039949719 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 1044144023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044144083) 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, 1451858 + ... + 1452576.

It is an arithmetic number, because the mean of its divisors is an integer number (70900200).

Almost surely, 2^1044144023 is an apocalyptic number.

1044144023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1044144023 is a deficient number, since it is larger than the sum of its proper divisors (90259177).

1044144023 is an frugal number, since it uses more digits than its factorization.

1044144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1044144023 is about 32313.2174659225. The cubic root of 1044144023 is about 1014.5033113874.

Adding to 1044144023 its reverse (3204414401), we get a palindrome (4248558424).

The spelling of 1044144023 in words is "one billion, forty-four million, one hundred forty-four thousand, twenty-three".