1109266818 has 16 divisors (see below), whose sum is σ = 2420218656. Its totient is φ = 336141440.

The previous prime is 1109266817. The next prime is 1109266819. The reversal of 1109266818 is 8186629011.

It is an interprime number because it is at equal distance from previous prime (1109266817) and next prime (1109266819).

It is a self number, because there is not a number n which added to its sum of digits gives 1109266818.

It is not an unprimeable number, because it can be changed into a prime (1109266811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8403471 + ... + 8403602.

It is an arithmetic number, because the mean of its divisors is an integer number (151263666).

Almost surely, 2^1109266818 is an apocalyptic number.

1109266818 is an abundant number, since it is smaller than the sum of its proper divisors (1310951838).

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

1109266818 is a wasteful number, since it uses less digits than its factorization.

1109266818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16807089.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1109266818 is about 33305.6574473467. The cubic root of 1109266818 is about 1035.1707865382.

The spelling of 1109266818 in words is "one billion, one hundred nine million, two hundred sixty-six thousand, eight hundred eighteen".