112785228 has 18 divisors (see below), whose sum is σ = 285096084. Its totient is φ = 37595064.

The previous prime is 112785217. The next prime is 112785229. The reversal of 112785228 is 822587211.

112785228 is a `hidden beast` number, since 1 + 127 + 8 + 522 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3132923 = 112785228 / (1 + 1 + 2 + 7 + 8 + 5 + 2 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 112785192 and 112785201.

It is not an unprimeable number, because it can be changed into a prime (112785229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1566426 + ... + 1566497.

Almost surely, 2^112785228 is an apocalyptic number.

112785228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

112785228 is an abundant number, since it is smaller than the sum of its proper divisors (172310856).

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

112785228 is a wasteful number, since it uses less digits than its factorization.

112785228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132933 (or 3132928 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 112785228 is about 10620.0389829793. The cubic root of 112785228 is about 483.1523251923.

The spelling of 112785228 in words is "one hundred twelve million, seven hundred eighty-five thousand, two hundred twenty-eight".