228505776 has 40 divisors (see below), whose sum is σ = 595836864. Its totient is φ = 75455040.

The previous prime is 228505699. The next prime is 228505777. The reversal of 228505776 is 677505822.

It is not an unprimeable number, because it can be changed into a prime (228505777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17110 + ... + 27381.

Almost surely, 2^228505776 is an apocalyptic number.

It is an amenable number.

228505776 is an abundant number, since it is smaller than the sum of its proper divisors (367331088).

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

228505776 is a wasteful number, since it uses less digits than its factorization.

228505776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44609 (or 44603 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 228505776 is about 15116.4075097227. The cubic root of 228505776 is about 611.3628723355.

The spelling of 228505776 in words is "two hundred twenty-eight million, five hundred five thousand, seven hundred seventy-six".