1143045344 has 72 divisors (see below), whose sum is σ = 2624302800. Its totient is φ = 488656896.

The previous prime is 1143045341. The next prime is 1143045367. The reversal of 1143045344 is 4435403411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143045341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938624 + ... + 939840.

It is an arithmetic number, because the mean of its divisors is an integer number (36448650).

Almost surely, 2^1143045344 is an apocalyptic number.

1143045344 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 1143045344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312151400).

1143045344 is an abundant number, since it is smaller than the sum of its proper divisors (1481257456).

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

1143045344 is a wasteful number, since it uses less digits than its factorization.

1143045344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1143045344 is about 33808.9536069959. The cubic root of 1143045344 is about 1045.5733044592.

Adding to 1143045344 its reverse (4435403411), we get a palindrome (5578448755).

The spelling of 1143045344 in words is "one billion, one hundred forty-three million, forty-five thousand, three hundred forty-four".