1109445248 has 32 divisors (see below), whose sum is σ = 2220017760. Its totient is φ = 552264448.

The previous prime is 1109445241. The next prime is 1109445251. The reversal of 1109445248 is 8425449011.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1109445241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9965 + ... + 48147.

It is an arithmetic number, because the mean of its divisors is an integer number (69375555).

Almost surely, 2^1109445248 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 1109445248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110008880).

1109445248 is an abundant number, since it is smaller than the sum of its proper divisors (1110572512).

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

1109445248 is an equidigital number, since it uses as much as digits as its factorization.

1109445248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38424 (or 38412 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1109445248 is about 33308.3360136768. The cubic root of 1109445248 is about 1035.2262873483.

The spelling of 1109445248 in words is "one billion, one hundred nine million, four hundred forty-five thousand, two hundred forty-eight".