111168444 has 12 divisors (see below), whose sum is σ = 259393064. Its totient is φ = 37056144.

The previous prime is 111168443. The next prime is 111168469. The reversal of 111168444 is 444861111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111168444² = 24716845882762272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111168443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4632007 + ... + 4632030.

Almost surely, 2^111168444 is an apocalyptic number.

It is an amenable number.

111168444 is an abundant number, since it is smaller than the sum of its proper divisors (148224620).

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

111168444 is a wasteful number, since it uses less digits than its factorization.

111168444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264044 (or 9264042 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 111168444 is about 10543.6447208733. The cubic root of 111168444 is about 480.8325308853.

The spelling of 111168444 in words is "one hundred eleven million, one hundred sixty-eight thousand, four hundred forty-four".