1143240044 has 12 divisors (see below), whose sum is σ = 2000957784. Its totient is φ = 571537824.

The previous prime is 1143239971. The next prime is 1143240061. The reversal of 1143240044 is 4400423411.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19352 + ... + 51584.

It is an arithmetic number, because the mean of its divisors is an integer number (166746482).

Almost surely, 2^1143240044 is an apocalyptic number.

It is an amenable number.

1143240044 is a deficient number, since it is larger than the sum of its proper divisors (857717740).

1143240044 is a wasteful number, since it uses less digits than its factorization.

1143240044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41104 (or 41102 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1143240044 is about 33811.8328991494. The cubic root of 1143240044 is about 1045.6326668067.

Adding to 1143240044 its reverse (4400423411), we get a palindrome (5543663455).

The spelling of 1143240044 in words is "one billion, one hundred forty-three million, two hundred forty thousand, forty-four".