1143880264 has 16 divisors (see below), whose sum is σ = 2150755200. Its totient is φ = 570345552.

The previous prime is 1143880249. The next prime is 1143880273. The reversal of 1143880264 is 4620883411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196272 + ... + 202015.

It is an arithmetic number, because the mean of its divisors is an integer number (134422200).

Almost surely, 2^1143880264 is an apocalyptic number.

It is an amenable number.

1143880264 is a deficient number, since it is larger than the sum of its proper divisors (1006874936).

1143880264 is a wasteful number, since it uses less digits than its factorization.

1143880264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398652 (or 398648 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1143880264 is about 33821.2989697321. The cubic root of 1143880264 is about 1045.8278168472.

The spelling of 1143880264 in words is "one billion, one hundred forty-three million, eight hundred eighty thousand, two hundred sixty-four".