111444472 has 8 divisors (see below), whose sum is σ = 208958400. Its totient is φ = 55722232.

The previous prime is 111444449. The next prime is 111444479. The reversal of 111444472 is 274444111.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 111444472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111444479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6965272 + ... + 6965287.

It is an arithmetic number, because the mean of its divisors is an integer number (26119800).

Almost surely, 2^111444472 is an apocalyptic number.

It is an amenable number.

111444472 is a deficient number, since it is larger than the sum of its proper divisors (97513928).

111444472 is a wasteful number, since it uses less digits than its factorization.

111444472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13930565 (or 13930561 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 111444472 is about 10556.7263865272. The cubic root of 111444472 is about 481.2301663384.

Adding to 111444472 its reverse (274444111), we get a palindrome (385888583).

The spelling of 111444472 in words is "one hundred eleven million, four hundred forty-four thousand, four hundred seventy-two".