1143440676 has 108 divisors (see below), whose sum is σ = 3508569792. Its totient is φ = 312482016.

The previous prime is 1143440651. The next prime is 1143440687. The reversal of 1143440676 is 6760443411.

1143440676 is a `hidden beast` number, since 1 + 143 + 440 + 6 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1143440676.

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 35 ways as a sum of consecutive naturals, for example, 26481 + ... + 54663.

Almost surely, 2^1143440676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143440676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1754284896).

1143440676 is an abundant number, since it is smaller than the sum of its proper divisors (2365129116).

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

1143440676 is a wasteful number, since it uses less digits than its factorization.

1143440676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28230 (or 28218 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1143440676 is about 33814.7996593208. The cubic root of 1143440676 is about 1045.6938307193.

The spelling of 1143440676 in words is "one billion, one hundred forty-three million, four hundred forty thousand, six hundred seventy-six".