1140444243 has 12 divisors (see below), whose sum is σ = 1648255440. Its totient is φ = 759859056.

The previous prime is 1140444223. The next prime is 1140444247. The reversal of 1140444243 is 3424440411.

1140444243 is a `hidden beast` number, since 11 + 404 + 4 + 4 + 243 = 666.

It is not a de Polignac number, because 1140444243 - 2¹⁰ = 1140443219 is a prime.

It is a super-2 number, since 2×1140444243² = 2601226142783686098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1140444247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19488 + ... + 51581.

It is an arithmetic number, because the mean of its divisors is an integer number (137354620).

Almost surely, 2^1140444243 is an apocalyptic number.

1140444243 is a deficient number, since it is larger than the sum of its proper divisors (507811197).

1140444243 is a wasteful number, since it uses less digits than its factorization.

1140444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72858 (or 72855 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1140444243 is about 33770.4640625503. The cubic root of 1140444243 is about 1044.7796038643.

Adding to 1140444243 its reverse (3424440411), we get a palindrome (4564884654).

The spelling of 1140444243 in words is "one billion, one hundred forty million, four hundred forty-four thousand, two hundred forty-three".