1109228904 has 144 divisors (see below), whose sum is σ = 3566378400. Its totient is φ = 316817568.

The previous prime is 1109228881. The next prime is 1109228909. The reversal of 1109228904 is 4098229011.

It is a super-2 number, since 2×1109228904² = 2460777522938082432, which contains 22 as substring.

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 (1109228909) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 365907 + ... + 368925.

Almost surely, 2^1109228904 is an apocalyptic number.

1109228904 is a gapful number since it is divisible by the number (14) 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 1109228904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783189200).

1109228904 is an abundant number, since it is smaller than the sum of its proper divisors (2457149496).

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

1109228904 is an frugal number, since it uses more digits than its factorization.

1109228904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1109228904 is about 33305.0882599041. The cubic root of 1109228904 is about 1035.1589925882.

The spelling of 1109228904 in words is "one billion, one hundred nine million, two hundred twenty-eight thousand, nine hundred four".