233388228 has 24 divisors (see below), whose sum is σ = 548494240. Its totient is φ = 77235840.

The previous prime is 233388217. The next prime is 233388241. The reversal of 233388228 is 822883332.

233388228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68293 + ... + 71628.

Almost surely, 2^233388228 is an apocalyptic number.

It is an amenable number.

233388228 is an abundant number, since it is smaller than the sum of its proper divisors (315106012).

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

233388228 is a wasteful number, since it uses less digits than its factorization.

233388228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140067 (or 140065 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 233388228 is about 15277.0490606007. The cubic root of 233388228 is about 615.6865253016.

The spelling of 233388228 in words is "two hundred thirty-three million, three hundred eighty-eight thousand, two hundred twenty-eight".