1109946240 has 512 divisors, whose sum is σ = 4355971200. Its totient is φ = 268738560.

The previous prime is 1109946209. The next prime is 1109946241. The reversal of 1109946240 is 426499011.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1109946195 and 1109946204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109946241) 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 63 ways as a sum of consecutive naturals, for example, 18195810 + ... + 18195870.

Almost surely, 2^1109946240 is an apocalyptic number.

1109946240 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 1109946240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177985600).

1109946240 is an abundant number, since it is smaller than the sum of its proper divisors (3246024960).

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

1109946240 is an frugal number, since it uses more digits than its factorization.

1109946240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 84 counting only the distinct ones).

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

The square root of 1109946240 is about 33315.8556846436. The cubic root of 1109946240 is about 1035.3820895510.

The spelling of 1109946240 in words is "one billion, one hundred nine million, nine hundred forty-six thousand, two hundred forty".