111388896 has 72 divisors (see below), whose sum is σ = 335409984. Its totient is φ = 34944000.

The previous prime is 111388891. The next prime is 111388897. The reversal of 111388896 is 698883111.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111388891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6480 + ... + 16271.

It is an arithmetic number, because the mean of its divisors is an integer number (4658472).

Almost surely, 2^111388896 is an apocalyptic number.

111388896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111388896 is an abundant number, since it is smaller than the sum of its proper divisors (224021088).

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

111388896 is a wasteful number, since it uses less digits than its factorization.

111388896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22784 (or 22773 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 111388896 is about 10554.0938028805. The cubic root of 111388896 is about 481.1501584976.

It can be divided in two parts, 1113 and 88896, that added together give a palindrome (90009).

The spelling of 111388896 in words is "one hundred eleven million, three hundred eighty-eight thousand, eight hundred ninety-six".