109388844 has 18 divisors (see below), whose sum is σ = 276510780. Its totient is φ = 36462936.

The previous prime is 109388837. The next prime is 109388857. The reversal of 109388844 is 448883901.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 109388844.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1519254 + ... + 1519325.

It is an arithmetic number, because the mean of its divisors is an integer number (15361710).

Almost surely, 2^109388844 is an apocalyptic number.

It is an amenable number.

109388844 is an abundant number, since it is smaller than the sum of its proper divisors (167121936).

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

109388844 is a wasteful number, since it uses less digits than its factorization.

109388844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038589 (or 3038584 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 109388844 is about 10458.9121805281. The cubic root of 109388844 is about 478.2529720756.

The spelling of 109388844 in words is "one hundred nine million, three hundred eighty-eight thousand, eight hundred forty-four".