1182117888 has 260 divisors, whose sum is σ = 4043732880. Its totient is φ = 337084416.

The previous prime is 1182117887. The next prime is 1182117907. The reversal of 1182117888 is 8887112811.

It is a happy number.

It is a super-2 number, since 2×1182117888² = 2794805402259161088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1182117887) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2322178 + ... + 2322686.

Almost surely, 2^1182117888 is an apocalyptic number.

1182117888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1182117888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021866440).

1182117888 is an abundant number, since it is smaller than the sum of its proper divisors (2861614992).

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

1182117888 is an frugal number, since it uses more digits than its factorization.

1182117888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 521 counting only the distinct ones).

The product of its digits is 57344, while the sum is 45.

The square root of 1182117888 is about 34381.9413064475. The cubic root of 1182117888 is about 1057.3536359980.

The spelling of 1182117888 in words is "one billion, one hundred eighty-two million, one hundred seventeen thousand, eight hundred eighty-eight".