228655556 has 12 divisors (see below), whose sum is σ = 403026960. Its totient is φ = 113505000.

The previous prime is 228655547. The next prime is 228655573. The reversal of 228655556 is 655556822.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205070 + ... + 206181.

It is an arithmetic number, because the mean of its divisors is an integer number (33585580).

Almost surely, 2^228655556 is an apocalyptic number.

It is an amenable number.

228655556 is a deficient number, since it is larger than the sum of its proper divisors (174371404).

228655556 is a wasteful number, since it uses less digits than its factorization.

228655556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411394 (or 411392 counting only the distinct ones).

The product of its digits is 720000, while the sum is 44.

The square root of 228655556 is about 15121.3609175894. The cubic root of 228655556 is about 611.4964210108.

The spelling of 228655556 in words is "two hundred twenty-eight million, six hundred fifty-five thousand, five hundred fifty-six".