228133423 has 8 divisors (see below), whose sum is σ = 260865440. Its totient is φ = 195436800.

The previous prime is 228133417. The next prime is 228133463. The reversal of 228133423 is 324331822.

228133423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228133423 - 2⁵ = 228133391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228133391 and 228133400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228133463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6823 + ... + 22423.

It is an arithmetic number, because the mean of its divisors is an integer number (32608180).

Almost surely, 2^228133423 is an apocalyptic number.

228133423 is a deficient number, since it is larger than the sum of its proper divisors (32732017).

228133423 is a wasteful number, since it uses less digits than its factorization.

228133423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17697.

The product of its digits is 6912, while the sum is 28.

The square root of 228133423 is about 15104.0863013954. The cubic root of 228133423 is about 611.0306173344.

The spelling of 228133423 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, four hundred twenty-three".