1118289956 has 36 divisors (see below), whose sum is σ = 2297837808. Its totient is φ = 474779088.

The previous prime is 1118289871. The next prime is 1118289979. The reversal of 1118289956 is 6599828111.

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 11 ways as a sum of consecutive naturals, for example, 5690 + ... + 47633.

It is an arithmetic number, because the mean of its divisors is an integer number (63828828).

Almost surely, 2^1118289956 is an apocalyptic number.

It is an amenable number.

1118289956 is an abundant number, since it is smaller than the sum of its proper divisors (1179547852).

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

1118289956 is a wasteful number, since it uses less digits than its factorization.

1118289956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53448 (or 53439 counting only the distinct ones).

The product of its digits is 311040, while the sum is 50.

The square root of 1118289956 is about 33440.8426329242. The cubic root of 1118289956 is about 1037.9700158277.

The spelling of 1118289956 in words is "one billion, one hundred eighteen million, two hundred eighty-nine thousand, nine hundred fifty-six".