1144403344 has 40 divisors (see below), whose sum is σ = 2538676800. Its totient is φ = 489560448.

The previous prime is 1144403279. The next prime is 1144403363. The reversal of 1144403344 is 4433044411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53982 + ... + 72130.

It is an arithmetic number, because the mean of its divisors is an integer number (63466920).

Almost surely, 2^1144403344 is an apocalyptic number.

1144403344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1144403344 is an abundant number, since it is smaller than the sum of its proper divisors (1394273456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144403344 is a wasteful number, since it uses less digits than its factorization.

1144403344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18727 (or 18721 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1144403344 is about 33829.0310827845. The cubic root of 1144403344 is about 1045.9872065626.

Adding to 1144403344 its reverse (4433044411), we get a palindrome (5577447755).

The spelling of 1144403344 in words is "one billion, one hundred forty-four million, four hundred three thousand, three hundred forty-four".