1115879984 has 20 divisors (see below), whose sum is σ = 2162648784. Its totient is φ = 557777088.

The previous prime is 1115879981. The next prime is 1115880001. The reversal of 1115879984 is 4899785111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1115879981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61709 + ... + 77715.

Almost surely, 2^1115879984 is an apocalyptic number.

It is an amenable number.

1115879984 is a deficient number, since it is larger than the sum of its proper divisors (1046768800).

1115879984 is a wasteful number, since it uses less digits than its factorization.

1115879984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20372 (or 20366 counting only the distinct ones).

The product of its digits is 725760, while the sum is 53.

The square root of 1115879984 is about 33404.7898361897. The cubic root of 1115879984 is about 1037.2238534232.

The spelling of 1115879984 in words is "one billion, one hundred fifteen million, eight hundred seventy-nine thousand, nine hundred eighty-four".