1143884268 has 30 divisors (see below), whose sum is σ = 2990340276. Its totient is φ = 381294648.

The previous prime is 1143884263. The next prime is 1143884281. The reversal of 1143884268 is 8624883411.

1143884268 is a `hidden beast` number, since 1 + 1 + 4 + 388 + 4 + 268 = 666.

It is not an unprimeable number, because it can be changed into a prime (1143884263) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1764930 + ... + 1765577.

Almost surely, 2^1143884268 is an apocalyptic number.

1143884268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1143884268 is an abundant number, since it is smaller than the sum of its proper divisors (1846456008).

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

1143884268 is a wasteful number, since it uses less digits than its factorization.

1143884268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530523 (or 3530512 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 1143884268 is about 33821.3581631489. The cubic root of 1143884268 is about 1045.8290371059.

The spelling of 1143884268 in words is "one billion, one hundred forty-three million, eight hundred eighty-four thousand, two hundred sixty-eight".