111440444 has 6 divisors (see below), whose sum is σ = 195020784. Its totient is φ = 55720220.

The previous prime is 111440437. The next prime is 111440447. The reversal of 111440444 is 444044111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111440447) 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, 13930052 + ... + 13930059.

It is an arithmetic number, because the mean of its divisors is an integer number (32503464).

Almost surely, 2^111440444 is an apocalyptic number.

It is an amenable number.

111440444 is a deficient number, since it is larger than the sum of its proper divisors (83580340).

111440444 is a wasteful number, since it uses less digits than its factorization.

111440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27860115 (or 27860113 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 111440444 is about 10556.5356059647. The cubic root of 111440444 is about 481.2243684780.

Adding to 111440444 its reverse (444044111), we get a palindrome (555484555).

The spelling of 111440444 in words is "one hundred eleven million, four hundred forty thousand, four hundred forty-four".