1143004440 has 64 divisors (see below), whose sum is σ = 3433039200. Its totient is φ = 304443392.

The previous prime is 1143004439. The next prime is 1143004453. The reversal of 1143004440 is 444003411.

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 15 ways as a sum of consecutive naturals, for example, 106354 + ... + 116606.

Almost surely, 2^1143004440 is an apocalyptic number.

1143004440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143004440 is an abundant number, since it is smaller than the sum of its proper divisors (2290034760).

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

1143004440 is a wasteful number, since it uses less digits than its factorization.

1143004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11196 (or 11192 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1143004440 is about 33808.3486730719. The cubic root of 1143004440 is about 1045.5608323262.

Adding to 1143004440 its reverse (444003411), we get a palindrome (1587007851).

The spelling of 1143004440 in words is "one billion, one hundred forty-three million, four thousand, four hundred forty".