109418868 has 108 divisors (see below), whose sum is σ = 316805580. Its totient is φ = 31647744.

The previous prime is 109418861. The next prime is 109418893. The reversal of 109418868 is 868814901.

It can be written as a sum of positive squares in 6 ways, for example, as 10575504 + 98843364 = 3252^2 + 9942^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109418861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134848 + ... + 135656.

It is an arithmetic number, because the mean of its divisors is an integer number (2933385).

Almost surely, 2^109418868 is an apocalyptic number.

109418868 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 109418868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158402790).

109418868 is an abundant number, since it is smaller than the sum of its proper divisors (207386712).

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

109418868 is a wasteful number, since it uses less digits than its factorization.

109418868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 109418868 is about 10460.3474129687. The cubic root of 109418868 is about 478.2967235015.

The spelling of 109418868 in words is "one hundred nine million, four hundred eighteen thousand, eight hundred sixty-eight".