111442988 has 6 divisors (see below), whose sum is σ = 195025236. Its totient is φ = 55721492.

The previous prime is 111442987. The next prime is 111443023. The reversal of 111442988 is 889244111.

It is not an unprimeable number, because it can be changed into a prime (111442987) 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 as a sum of consecutive naturals, namely, 13930370 + ... + 13930377.

It is an arithmetic number, because the mean of its divisors is an integer number (32504206).

Almost surely, 2^111442988 is an apocalyptic number.

It is an amenable number.

111442988 is a deficient number, since it is larger than the sum of its proper divisors (83582248).

111442988 is a wasteful number, since it uses less digits than its factorization.

111442988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27860751 (or 27860749 counting only the distinct ones).

The product of its digits is 18432, while the sum is 38.

The square root of 111442988 is about 10556.6560993527. The cubic root of 111442988 is about 481.2280303008.

The spelling of 111442988 in words is "one hundred eleven million, four hundred forty-two thousand, nine hundred eighty-eight".