228731108 has 6 divisors (see below), whose sum is σ = 400279446. Its totient is φ = 114365552.

The previous prime is 228731059. The next prime is 228731131. The reversal of 228731108 is 801137822.

It can be written as a sum of positive squares in only one way, i.e., 208282624 + 20448484 = 14432^2 + 4522^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28591385 + ... + 28591392.

It is an arithmetic number, because the mean of its divisors is an integer number (66713241).

Almost surely, 2^228731108 is an apocalyptic number.

It is an amenable number.

228731108 is a deficient number, since it is larger than the sum of its proper divisors (171548338).

228731108 is a wasteful number, since it uses less digits than its factorization.

228731108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57182781 (or 57182779 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 228731108 is about 15123.8588991038. The cubic root of 228731108 is about 611.5637634813.

The spelling of 228731108 in words is "two hundred twenty-eight million, seven hundred thirty-one thousand, one hundred eight".