228023712 has 144 divisors (see below), whose sum is σ = 780212160. Its totient is φ = 61710336.

The previous prime is 228023707. The next prime is 228023729. The reversal of 228023712 is 217320822.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35328 + ... + 41280.

It is an arithmetic number, because the mean of its divisors is an integer number (5418140).

Almost surely, 2^228023712 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 228023712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390106080).

228023712 is an abundant number, since it is smaller than the sum of its proper divisors (552188448).

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

228023712 is a wasteful number, since it uses less digits than its factorization.

228023712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 228023712 is about 15100.4540329091. The cubic root of 228023712 is about 610.9326519593.

The spelling of 228023712 in words is "two hundred twenty-eight million, twenty-three thousand, seven hundred twelve".