1144414544 has 80 divisors (see below), whose sum is σ = 2754407040. Its totient is φ = 448519680.

The previous prime is 1144414499. The next prime is 1144414547. The reversal of 1144414544 is 4454144411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144414544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144414547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155099 + ... + 162309.

It is an arithmetic number, because the mean of its divisors is an integer number (34430088).

Almost surely, 2^1144414544 is an apocalyptic number.

1144414544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144414544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377203520).

1144414544 is an abundant number, since it is smaller than the sum of its proper divisors (1609992496).

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

1144414544 is a wasteful number, since it uses less digits than its factorization.

1144414544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348 (or 7342 counting only the distinct ones).

The product of its digits is 20480, while the sum is 32.

The square root of 1144414544 is about 33829.1966206707. The cubic root of 1144414544 is about 1045.9906188265.

Adding to 1144414544 its reverse (4454144411), we get a palindrome (5598558955).

The spelling of 1144414544 in words is "one billion, one hundred forty-four million, four hundred fourteen thousand, five hundred forty-four".