228573216 has 72 divisors (see below), whose sum is σ = 653103360. Its totient is φ = 75828096.

The previous prime is 228573197. The next prime is 228573227. The reversal of 228573216 is 612375822.

228573216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62445 + ... + 66003.

It is an arithmetic number, because the mean of its divisors is an integer number (9070880).

Almost surely, 2^228573216 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 228573216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326551680).

228573216 is an abundant number, since it is smaller than the sum of its proper divisors (424530144).

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

228573216 is a wasteful number, since it uses less digits than its factorization.

228573216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798 (or 3787 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 228573216 is about 15118.6380338971. The cubic root of 228573216 is about 611.4230112334.

The spelling of 228573216 in words is "two hundred twenty-eight million, five hundred seventy-three thousand, two hundred sixteen".