1109328 has 60 divisors (see below), whose sum is σ = 3166464. Its totient is φ = 334400.

The previous prime is 1109327. The next prime is 1109347. The reversal of 1109328 is 8239011.

It is a super-2 number, since 2×1109328² = 2461217223168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1109298 and 1109307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5713 + ... + 5903.

2^1109328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583232).

1109328 is an abundant number, since it is smaller than the sum of its proper divisors (2057136).

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

1109328 is a wasteful number, since it uses less digits than its factorization.

1109328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1109328 is about 1053.2464099156. The cubic root of 1109328 is about 103.5189817924.

The spelling of 1109328 in words is "one million, one hundred nine thousand, three hundred twenty-eight".