228227556 has 12 divisors (see below), whose sum is σ = 532530992. Its totient is φ = 76075848.

The previous prime is 228227539. The next prime is 228227557. The reversal of 228227556 is 655722822.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (228227557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9509470 + ... + 9509493.

Almost surely, 2^228227556 is an apocalyptic number.

It is an amenable number.

228227556 is an abundant number, since it is smaller than the sum of its proper divisors (304303436).

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

228227556 is a wasteful number, since it uses less digits than its factorization.

228227556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19018970 (or 19018968 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 228227556 is about 15107.2021234906. The cubic root of 228227556 is about 611.1146474531.

The spelling of 228227556 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, five hundred fifty-six".