1144540000 has 120 divisors (see below), whose sum is σ = 2851805880. Its totient is φ = 451968000.

The previous prime is 1144539989. The next prime is 1144540021. The reversal of 1144540000 is 454411.

It is a self number, because there is not a number n which added to its sum of digits gives 1144540000.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 1779679 + ... + 1780321.

It is an arithmetic number, because the mean of its divisors is an integer number (23765049).

Almost surely, 2^1144540000 is an apocalyptic number.

1144540000 is a gapful number since it is divisible by the number (10) 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 1144540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425902940).

1144540000 is an abundant number, since it is smaller than the sum of its proper divisors (1707265880).

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

1144540000 is an frugal number, since it uses more digits than its factorization.

1144540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1144540000 is about 33831.0508261272. The cubic root of 1144540000 is about 1046.0288395350.

Adding to 1144540000 its reverse (454411), we get a palindrome (1144994411).

The spelling of 1144540000 in words is "one billion, one hundred forty-four million, five hundred forty thousand".