It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
21109472 is an apocalyptic number.
1109472 is a gapful number since it is divisible by the number (12) 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 1109472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1109472 is a wasteful number, since it uses less digits than its factorization.
1109472 is an evil number, because the sum of its binary digits is even.
The square root of 1109472 is about 1053.3147677689. The cubic root of 1109472 is about 103.5234608069.
The spelling of 1109472 in words is "one million, one hundred nine thousand, four hundred seventy-two".