111818444 has 24 divisors (see below), whose sum is σ = 199600128. Its totient is φ = 54798480.

The previous prime is 111818431. The next prime is 111818453. The reversal of 111818444 is 444818111.

It is a super-2 number, since 2×111818444² = 25006728837162272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111818444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58829 + ... + 60699.

It is an arithmetic number, because the mean of its divisors is an integer number (8316672).

Almost surely, 2^111818444 is an apocalyptic number.

It is an amenable number.

111818444 is a deficient number, since it is larger than the sum of its proper divisors (87781684).

111818444 is a wasteful number, since it uses less digits than its factorization.

111818444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2163 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 111818444 is about 10574.4240505098. The cubic root of 111818444 is about 481.7678501898.

The spelling of 111818444 in words is "one hundred eleven million, eight hundred eighteen thousand, four hundred forty-four".