228758112 has 144 divisors (see below), whose sum is σ = 715635648. Its totient is φ = 68739840.

The previous prime is 228758111. The next prime is 228758143. The reversal of 228758112 is 211857822.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228758111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 516163 + ... + 516605.

It is an arithmetic number, because the mean of its divisors is an integer number (4969692).

Almost surely, 2^228758112 is an apocalyptic number.

228758112 is a gapful number since it is divisible by the number (22) 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 228758112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357817824).

228758112 is an abundant number, since it is smaller than the sum of its proper divisors (486877536).

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

228758112 is a wasteful number, since it uses less digits than its factorization.

228758112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 622 counting only the distinct ones).

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

The square root of 228758112 is about 15124.7516343244. The cubic root of 228758112 is about 611.5878296117.

The spelling of 228758112 in words is "two hundred twenty-eight million, seven hundred fifty-eight thousand, one hundred twelve".