1109033856 has 480 divisors, whose sum is σ = 4009915800. Its totient is φ = 303077376.

The previous prime is 1109033801. The next prime is 1109033869. The reversal of 1109033856 is 6583309011.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1109033856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 18797155 + ... + 18797213.

Almost surely, 2^1109033856 is an apocalyptic number.

1109033856 is a gapful number since it is divisible by the number (16) 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 1109033856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004957900).

1109033856 is an abundant number, since it is smaller than the sum of its proper divisors (2900881944).

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

1109033856 is an equidigital number, since it uses as much as digits as its factorization.

1109033856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1109033856 is about 33302.1599299505. The cubic root of 1109033856 is about 1035.0983145424.

The spelling of 1109033856 in words is "one billion, one hundred nine million, thirty-three thousand, eight hundred fifty-six".