109403280 has 240 divisors, whose sum is σ = 429436800. Its totient is φ = 24950016.

The previous prime is 109403267. The next prime is 109403291. The reversal of 109403280 is 82304901.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246739 + ... + 247181.

It is an arithmetic number, because the mean of its divisors is an integer number (1789320).

Almost surely, 2^109403280 is an apocalyptic number.

109403280 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 109403280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214718400).

109403280 is an abundant number, since it is smaller than the sum of its proper divisors (320033520).

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

109403280 is a wasteful number, since it uses less digits than its factorization.

109403280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 109403280 is about 10459.6022868941. The cubic root of 109403280 is about 478.2740094318.

The spelling of 109403280 in words is "one hundred nine million, four hundred three thousand, two hundred eighty".