1109472 has 96 divisors (see below), whose sum is σ = 3612672. Its totient is φ = 290304.

The previous prime is 1109431. The next prime is 1109473. The reversal of 1109472 is 2749011.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8673 + ... + 8799.

It is an arithmetic number, because the mean of its divisors is an integer number (37632).

2^1109472 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).

1109472 is an abundant number, since it is smaller than the sum of its proper divisors (2503200).

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 sum of its prime factors is 160 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

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".