1109430000 has 400 divisors, whose sum is σ = 4555541760. Its totient is φ = 253152000.

The previous prime is 1109429987. The next prime is 1109430017. The reversal of 1109430000 is 349011.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 1889707 + ... + 1890293.

Almost surely, 2^1109430000 is an apocalyptic number.

1109430000 is a gapful number since it is divisible by the number (10) 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 1109430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2277770880).

1109430000 is an abundant number, since it is smaller than the sum of its proper divisors (3446111760).

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

1109430000 is an equidigital number, since it uses as much as digits as its factorization.

1109430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1109430000 is about 33308.1071212400. The cubic root of 1109430000 is about 1035.2215446769.

Adding to 1109430000 its reverse (349011), we get a palindrome (1109779011).

The spelling of 1109430000 in words is "one billion, one hundred nine million, four hundred thirty thousand".