1109230668 has 144 divisors (see below), whose sum is σ = 3462833920. Its totient is φ = 291537792.

The previous prime is 1109230667. The next prime is 1109230673. The reversal of 1109230668 is 8660329011.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1109230663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1791663 + ... + 1792281.

Almost surely, 2^1109230668 is an apocalyptic number.

1109230668 is a gapful number since it is divisible by the number (18) 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 1109230668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1731416960).

1109230668 is an abundant number, since it is smaller than the sum of its proper divisors (2353603252).

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

1109230668 is a wasteful number, since it uses less digits than its factorization.

1109230668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1109230668 is about 33305.1147423335. The cubic root of 1109230668 is about 1035.1595413236.

Adding to 1109230668 its reverse (8660329011), we get a palindrome (9769559679).

The spelling of 1109230668 in words is "one billion, one hundred nine million, two hundred thirty thousand, six hundred sixty-eight".