109441818 has 24 divisors (see below), whose sum is σ = 251073108. Its totient is φ = 34334592.

The previous prime is 109441817. The next prime is 109441823. The reversal of 109441818 is 818144901.

It can be written as a sum of positive squares in 2 ways, for example, as 81595089 + 27846729 = 9033^2 + 5277^2 .

It is not an unprimeable number, because it can be changed into a prime (109441817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178521 + ... + 179132.

Almost surely, 2^109441818 is an apocalyptic number.

109441818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

109441818 is an abundant number, since it is smaller than the sum of its proper divisors (141631290).

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

109441818 is a wasteful number, since it uses less digits than its factorization.

109441818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357678 (or 357675 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 109441818 is about 10461.4443553460. Note that the first 3 decimals coincide. The cubic root of 109441818 is about 478.3301611912.

The spelling of 109441818 in words is "one hundred nine million, four hundred forty-one thousand, eight hundred eighteen".