180660228 has 24 divisors (see below), whose sum is σ = 481760832. Its totient is φ = 51617184.

The previous prime is 180660209. The next prime is 180660247. The reversal of 180660228 is 822066081.

It is an interprime number because it is at equal distance from previous prime (180660209) and next prime (180660247).

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, 1075275 + ... + 1075442.

It is an arithmetic number, because the mean of its divisors is an integer number (20073368).

Almost surely, 2^180660228 is an apocalyptic number.

It is an amenable number.

180660228 is an abundant number, since it is smaller than the sum of its proper divisors (301100604).

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

180660228 is a wasteful number, since it uses less digits than its factorization.

180660228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150731 (or 2150729 counting only the distinct ones).

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

The square root of 180660228 is about 13440.9905884946. The cubic root of 180660228 is about 565.3111064980.

The spelling of 180660228 in words is "one hundred eighty million, six hundred sixty thousand, two hundred twenty-eight".