228843279 has 24 divisors (see below), whose sum is σ = 394380720. Its totient is φ = 130766832.

The previous prime is 228843233. The next prime is 228843281. The reversal of 228843279 is 972348822.

It is not a de Polignac number, because 228843279 - 2⁷ = 228843151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228843179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85164 + ... + 87809.

It is an arithmetic number, because the mean of its divisors is an integer number (16432530).

Almost surely, 2^228843279 is an apocalyptic number.

228843279 is a deficient number, since it is larger than the sum of its proper divisors (165537441).

228843279 is a wasteful number, since it uses less digits than its factorization.

228843279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172996 (or 172983 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 228843279 is about 15127.5668565702. The cubic root of 228843279 is about 611.6637185605.

The spelling of 228843279 in words is "two hundred twenty-eight million, eight hundred forty-three thousand, two hundred seventy-nine".