228170656 has 36 divisors (see below), whose sum is σ = 522555138. Its totient is φ = 97786752.

The previous prime is 228170587. The next prime is 228170669. The reversal of 228170656 is 656071822.

It is a happy number.

228170656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 198359056 + 29811600 = 14084^2 + 5460^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71191 + ... + 74326.

Almost surely, 2^228170656 is an apocalyptic number.

It is an amenable number.

228170656 is an abundant number, since it is smaller than the sum of its proper divisors (294384482).

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

228170656 is a wasteful number, since it uses less digits than its factorization.

228170656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145541 (or 145526 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 228170656 is about 15105.3187983571. The cubic root of 228170656 is about 611.0638570428.

It can be divided in two parts, 228170 and 656, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 228170656 in words is "two hundred twenty-eight million, one hundred seventy thousand, six hundred fifty-six".