109838880 has 144 divisors (see below), whose sum is σ = 379753920. Its totient is φ = 28905984.

The previous prime is 109838851. The next prime is 109838881. The reversal of 109838880 is 88838901.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (109838881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119061 + ... + 119979.

It is an arithmetic number, because the mean of its divisors is an integer number (2637180).

Almost surely, 2^109838880 is an apocalyptic number.

109838880 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 109838880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189876960).

109838880 is an abundant number, since it is smaller than the sum of its proper divisors (269915040).

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

109838880 is a wasteful number, since it uses less digits than its factorization.

109838880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1012 counting only the distinct ones).

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

The square root of 109838880 is about 10480.4045723436. The cubic root of 109838880 is about 478.9079339504.

The spelling of 109838880 in words is "one hundred nine million, eight hundred thirty-eight thousand, eight hundred eighty".