228216333 has 16 divisors (see below), whose sum is σ = 314992640. Its totient is φ = 146857536.

The previous prime is 228216293. The next prime is 228216337. The reversal of 228216333 is 333612822.

228216333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228216333 - 2⁸ = 228216077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228216333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228216337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6003 + ... + 22191.

It is an arithmetic number, because the mean of its divisors is an integer number (19687040).

Almost surely, 2^228216333 is an apocalyptic number.

It is an amenable number.

228216333 is a deficient number, since it is larger than the sum of its proper divisors (86776307).

228216333 is a wasteful number, since it uses less digits than its factorization.

228216333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16356.

The product of its digits is 10368, while the sum is 30.

The square root of 228216333 is about 15106.8306735728. The cubic root of 228216333 is about 611.1046301817.

The spelling of 228216333 in words is "two hundred twenty-eight million, two hundred sixteen thousand, three hundred thirty-three".