228322588 has 24 divisors (see below), whose sum is σ = 433056512. Its totient is φ = 104704704.

The previous prime is 228322579. The next prime is 228322607. The reversal of 228322588 is 885223822.

It is a self number, because there is not a number n which added to its sum of digits gives 228322588.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5820 + ... + 22147.

Almost surely, 2^228322588 is an apocalyptic number.

It is an amenable number.

228322588 is a deficient number, since it is larger than the sum of its proper divisors (204733924).

228322588 is a wasteful number, since it uses less digits than its factorization.

228322588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28141 (or 28139 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 228322588 is about 15110.3470509449. The cubic root of 228322588 is about 611.1994566516.

The spelling of 228322588 in words is "two hundred twenty-eight million, three hundred twenty-two thousand, five hundred eighty-eight".