228538567 has 4 divisors (see below), whose sum is σ = 229735296. Its totient is φ = 227341840.

The previous prime is 228538559. The next prime is 228538579. The reversal of 228538567 is 765835822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228538567 - 2³ = 228538559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228538367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598078 + ... + 598459.

It is an arithmetic number, because the mean of its divisors is an integer number (57433824).

Almost surely, 2^228538567 is an apocalyptic number.

228538567 is a deficient number, since it is larger than the sum of its proper divisors (1196729).

228538567 is a wasteful number, since it uses less digits than its factorization.

228538567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196728.

The product of its digits is 806400, while the sum is 46.

The square root of 228538567 is about 15117.4920869832. The cubic root of 228538567 is about 611.3921148364.

The spelling of 228538567 in words is "two hundred twenty-eight million, five hundred thirty-eight thousand, five hundred sixty-seven".