111344428 has 24 divisors (see below), whose sum is σ = 210507920. Its totient is φ = 51226560.

The previous prime is 111344413. The next prime is 111344447. The reversal of 111344428 is 824443111.

It is a junction number, because it is equal to n+sod(n) for n = 111344396 and 111344405.

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, 13978 + ... + 20446.

Almost surely, 2^111344428 is an apocalyptic number.

It is an amenable number.

111344428 is a deficient number, since it is larger than the sum of its proper divisors (99163492).

111344428 is a wasteful number, since it uses less digits than its factorization.

111344428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817 (or 6815 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 111344428 is about 10551.9869219024. The cubic root of 111344428 is about 481.0861226920.

Adding to 111344428 its reverse (824443111), we get a palindrome (935787539).

The spelling of 111344428 in words is "one hundred eleven million, three hundred forty-four thousand, four hundred twenty-eight".