108783840 has 144 divisors (see below), whose sum is σ = 376853904. Its totient is φ = 26357760.

The previous prime is 108783839. The next prime is 108783847. The reversal of 108783840 is 48387801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108783847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57144 + ... + 59016.

It is an arithmetic number, because the mean of its divisors is an integer number (2617041).

Almost surely, 2^108783840 is an apocalyptic number.

108783840 is a gapful number since it is divisible by the number (10) 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 108783840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188426952).

108783840 is an abundant number, since it is smaller than the sum of its proper divisors (268070064).

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

108783840 is a wasteful number, since it uses less digits than its factorization.

108783840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 108783840 is about 10429.9491849194. The cubic root of 108783840 is about 477.3696399531.

The spelling of 108783840 in words is "one hundred eight million, seven hundred eighty-three thousand, eight hundred forty".