1117931856 has 40 divisors (see below), whose sum is σ = 2889443040. Its totient is φ = 372456576.

The previous prime is 1117931819. The next prime is 1117931879. The reversal of 1117931856 is 6581397111.

It is a super-3 number, since 3×1117931856³ (a number of 28 digits) contains 333 as substring.

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, 117286 + ... + 126458.

It is an arithmetic number, because the mean of its divisors is an integer number (72236076).

Almost surely, 2^1117931856 is an apocalyptic number.

1117931856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1117931856 is an abundant number, since it is smaller than the sum of its proper divisors (1771511184).

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

1117931856 is a wasteful number, since it uses less digits than its factorization.

1117931856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723 (or 11717 counting only the distinct ones).

The product of its digits is 45360, while the sum is 42.

The square root of 1117931856 is about 33435.4879731102. The cubic root of 1117931856 is about 1037.8592107117.

The spelling of 1117931856 in words is "one billion, one hundred seventeen million, nine hundred thirty-one thousand, eight hundred fifty-six".