1109933220 has 48 divisors (see below), whose sum is σ = 3390343488. Its totient is φ = 269074560.

The previous prime is 1109933171. The next prime is 1109933239. The reversal of 1109933220 is 223399011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 840199 + ... + 841518.

It is an arithmetic number, because the mean of its divisors is an integer number (70632156).

Almost surely, 2^1109933220 is an apocalyptic number.

1109933220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109933220 is an abundant number, since it is smaller than the sum of its proper divisors (2280410268).

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

1109933220 is a wasteful number, since it uses less digits than its factorization.

1109933220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681740 (or 1681738 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1109933220 is about 33315.6602816153. The cubic root of 1109933220 is about 1035.3780410884.

The spelling of 1109933220 in words is "one billion, one hundred nine million, nine hundred thirty-three thousand, two hundred twenty".