228708680 has 32 divisors (see below), whose sum is σ = 516007800. Its totient is φ = 91232256.

The previous prime is 228708673. The next prime is 228708691. The reversal of 228708680 is 86807822.

It can be written as a sum of positive squares in 4 ways, for example, as 138344644 + 90364036 = 11762^2 + 9506^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7256 + ... + 22584.

Almost surely, 2^228708680 is an apocalyptic number.

228708680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228708680 is an abundant number, since it is smaller than the sum of its proper divisors (287299120).

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

228708680 is a wasteful number, since it uses less digits than its factorization.

228708680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15713 (or 15709 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 228708680 is about 15123.1174034985. The cubic root of 228708680 is about 611.5437740702.

The spelling of 228708680 in words is "two hundred twenty-eight million, seven hundred eight thousand, six hundred eighty".