1143782886 has 16 divisors (see below), whose sum is σ = 2340765504. Its totient is φ = 372394344.

The previous prime is 1143782873. The next prime is 1143782891. The reversal of 1143782886 is 6882873411.

1143782886 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216376 + ... + 2216891.

It is an arithmetic number, because the mean of its divisors is an integer number (146297844).

Almost surely, 2^1143782886 is an apocalyptic number.

1143782886 is an abundant number, since it is smaller than the sum of its proper divisors (1196982618).

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

1143782886 is a wasteful number, since it uses less digits than its factorization.

1143782886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433315.

The product of its digits is 516096, while the sum is 48.

The square root of 1143782886 is about 33819.8593432912. The cubic root of 1143782886 is about 1045.7981390582.

The spelling of 1143782886 in words is "one billion, one hundred forty-three million, seven hundred eighty-two thousand, eight hundred eighty-six".