228685852 has 12 divisors (see below), whose sum is σ = 403352320. Its totient is φ = 113442336.

The previous prime is 228685837. The next prime is 228685867. The reversal of 228685852 is 258586822.

It is an interprime number because it is at equal distance from previous prime (228685837) and next prime (228685867).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224577 + ... + 225592.

Almost surely, 2^228685852 is an apocalyptic number.

It is an amenable number.

228685852 is a deficient number, since it is larger than the sum of its proper divisors (174666468).

228685852 is a wasteful number, since it uses less digits than its factorization.

228685852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450300 (or 450298 counting only the distinct ones).

The product of its digits is 614400, while the sum is 46.

The square root of 228685852 is about 15122.3626460947. The cubic root of 228685852 is about 611.5234268090.

The spelling of 228685852 in words is "two hundred twenty-eight million, six hundred eighty-five thousand, eight hundred fifty-two".