1109545008 has 160 divisors (see below), whose sum is σ = 3400615680. Its totient is φ = 307307520.

The previous prime is 1109545007. The next prime is 1109545013. The reversal of 1109545008 is 8005459011.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 1109545008.

It is not an unprimeable number, because it can be changed into a prime (1109545007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747435 + ... + 748917.

It is an arithmetic number, because the mean of its divisors is an integer number (21253848).

Almost surely, 2^1109545008 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 1109545008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700307840).

1109545008 is an abundant number, since it is smaller than the sum of its proper divisors (2291070672).

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

1109545008 is a wasteful number, since it uses less digits than its factorization.

1109545008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 1109545008 is about 33309.8335030363. The cubic root of 1109545008 is about 1035.2573151913.

The spelling of 1109545008 in words is "one billion, one hundred nine million, five hundred forty-five thousand, eight".