109891320 has 192 divisors, whose sum is σ = 418608000. Its totient is φ = 22821120.

The previous prime is 109891303. The next prime is 109891321. The reversal of 109891320 is 23198901.

It is a super-2 number, since 2×109891320² = 24152204422684800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109891321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63831 + ... + 65529.

It is an arithmetic number, because the mean of its divisors is an integer number (2180250).

Almost surely, 2^109891320 is an apocalyptic number.

109891320 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 109891320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209304000).

109891320 is an abundant number, since it is smaller than the sum of its proper divisors (308716680).

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

109891320 is a wasteful number, since it uses less digits than its factorization.

109891320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 109891320 is about 10482.9060856234. The cubic root of 109891320 is about 478.9841362825.

The spelling of 109891320 in words is "one hundred nine million, eight hundred ninety-one thousand, three hundred twenty".