228583566 has 32 divisors (see below), whose sum is σ = 534700800. Its totient is φ = 72183960.

The previous prime is 228583561. The next prime is 228583567. The reversal of 228583566 is 665385822.

228583566 is a `hidden beast` number, since 2 + 2 + 8 + 5 + 83 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228583561) 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 15 ways as a sum of consecutive naturals, for example, 110370 + ... + 112421.

It is an arithmetic number, because the mean of its divisors is an integer number (16709400).

Almost surely, 2^228583566 is an apocalyptic number.

228583566 is an abundant number, since it is smaller than the sum of its proper divisors (306117234).

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

228583566 is a wasteful number, since it uses less digits than its factorization.

228583566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222821 (or 222815 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 228583566 is about 15118.9803227599. The cubic root of 228583566 is about 611.4322396881.

The spelling of 228583566 in words is "two hundred twenty-eight million, five hundred eighty-three thousand, five hundred sixty-six".