1168981884 has 144 divisors (see below), whose sum is σ = 3438489600. Its totient is φ = 327991680.

The previous prime is 1168981861. The next prime is 1168981901. The reversal of 1168981884 is 4881898611.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1168981884.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6120229 + ... + 6120419.

It is an arithmetic number, because the mean of its divisors is an integer number (23878400).

Almost surely, 2^1168981884 is an apocalyptic number.

1168981884 is a gapful number since it is divisible by the number (14) 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 1168981884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1719244800).

1168981884 is an abundant number, since it is smaller than the sum of its proper divisors (2269507716).

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

1168981884 is a wasteful number, since it uses less digits than its factorization.

1168981884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 515 counting only the distinct ones).

The product of its digits is 884736, while the sum is 54.

The square root of 1168981884 is about 34190.3770672393. The cubic root of 1168981884 is about 1053.4225082953.

The spelling of 1168981884 in words is "one billion, one hundred sixty-eight million, nine hundred eighty-one thousand, eight hundred eighty-four".