111404928 has 64 divisors (see below), whose sum is σ = 303955920. Its totient is φ = 36126720.

The previous prime is 111404897. The next prime is 111404929. The reversal of 111404928 is 829404111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×111404928² = 24822115965370368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111404895 and 111404904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111404929) 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 7 ways as a sum of consecutive naturals, for example, 10288 + ... + 18128.

Almost surely, 2^111404928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111404928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151977960).

111404928 is an abundant number, since it is smaller than the sum of its proper divisors (192550992).

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

111404928 is an equidigital number, since it uses as much as digits as its factorization.

111404928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895 (or 7883 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 111404928 is about 10554.8532912590. The cubic root of 111404928 is about 481.1732410775.

The spelling of 111404928 in words is "one hundred eleven million, four hundred four thousand, nine hundred twenty-eight".