111768228 has 96 divisors (see below), whose sum is σ = 340475520. Its totient is φ = 31259520.

The previous prime is 111768227. The next prime is 111768229. The reversal of 111768228 is 822867111.

It is an interprime number because it is at equal distance from previous prime (111768227) and next prime (111768229).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 111768192 and 111768201.

It is not an unprimeable number, because it can be changed into a prime (111768221) 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 31 ways as a sum of consecutive naturals, for example, 11826 + ... + 19062.

It is an arithmetic number, because the mean of its divisors is an integer number (3546620).

Almost surely, 2^111768228 is an apocalyptic number.

111768228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111768228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170237760).

111768228 is an abundant number, since it is smaller than the sum of its proper divisors (228707292).

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

111768228 is a wasteful number, since it uses less digits than its factorization.

111768228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7274 (or 7266 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 111768228 is about 10572.0493755941. The cubic root of 111768228 is about 481.6957211328.

The spelling of 111768228 in words is "one hundred eleven million, seven hundred sixty-eight thousand, two hundred twenty-eight".