228338286 has 32 divisors (see below), whose sum is σ = 515376000. Its totient is φ = 66806880.

The previous prime is 228338269. The next prime is 228338287. The reversal of 228338286 is 682833822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228338287) 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, 57736 + ... + 61563.

It is an arithmetic number, because the mean of its divisors is an integer number (16105500).

Almost surely, 2^228338286 is an apocalyptic number.

228338286 is an abundant number, since it is smaller than the sum of its proper divisors (287037714).

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

228338286 is a wasteful number, since it uses less digits than its factorization.

228338286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119344.

The product of its digits is 221184, while the sum is 42.

The square root of 228338286 is about 15110.8664873991. The cubic root of 228338286 is about 611.2134637184.

The spelling of 228338286 in words is "two hundred twenty-eight million, three hundred thirty-eight thousand, two hundred eighty-six".