1143310240 has 24 divisors (see below), whose sum is σ = 2701070820. Its totient is φ = 457324032.

The previous prime is 1143310193. The next prime is 1143310253. The reversal of 1143310240 is 420133411.

It can be written as a sum of positive squares in 2 ways, for example, as 1142169616 + 1140624 = 33796^2 + 1068^2 .

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 3 ways as a sum of consecutive naturals, for example, 3572685 + ... + 3573004.

Almost surely, 2^1143310240 is an apocalyptic number.

1143310240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143310240 is an abundant number, since it is smaller than the sum of its proper divisors (1557760580).

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

1143310240 is an equidigital number, since it uses as much as digits as its factorization.

1143310240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145704 (or 7145696 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143310240 is about 33812.8709221799. The cubic root of 1143310240 is about 1045.6540673075.

Adding to 1143310240 its reverse (420133411), we get a palindrome (1563443651).

The spelling of 1143310240 in words is "one billion, one hundred forty-three million, three hundred ten thousand, two hundred forty".