228661008 has 40 divisors (see below), whose sum is σ = 591628800. Its totient is φ = 76101504.

The previous prime is 228661003. The next prime is 228661019. The reversal of 228661008 is 800166822.

It is a self number, because there is not a number n which added to its sum of digits gives 228661008.

It is not an unprimeable number, because it can be changed into a prime (228661003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30673 + ... + 37391.

It is an arithmetic number, because the mean of its divisors is an integer number (14790720).

Almost surely, 2^228661008 is an apocalyptic number.

It is an amenable number.

228661008 is an abundant number, since it is smaller than the sum of its proper divisors (362967792).

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

228661008 is a wasteful number, since it uses less digits than its factorization.

228661008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439 (or 7433 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 228661008 is about 15121.5411912940. The cubic root of 228661008 is about 611.5012810895.

The spelling of 228661008 in words is "two hundred twenty-eight million, six hundred sixty-one thousand, eight".