228965856 has 48 divisors (see below), whose sum is σ = 686899584. Its totient is φ = 65418624.

The previous prime is 228965839. The next prime is 228965857. The reversal of 228965856 is 658569822.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 228965799 and 228965808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228965857) 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, 169690 + ... + 171033.

It is an arithmetic number, because the mean of its divisors is an integer number (14310408).

Almost surely, 2^228965856 is an apocalyptic number.

It is an amenable number.

228965856 is an abundant number, since it is smaller than the sum of its proper divisors (457933728).

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

228965856 is a wasteful number, since it uses less digits than its factorization.

228965856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340743 (or 340735 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 228965856 is about 15131.6177588518. The cubic root of 228965856 is about 611.7729090384.

The spelling of 228965856 in words is "two hundred twenty-eight million, nine hundred sixty-five thousand, eight hundred fifty-six".