180415228 has 24 divisors (see below), whose sum is σ = 361367552. Its totient is φ = 77205744.

The previous prime is 180415199. The next prime is 180415231. The reversal of 180415228 is 822514081.

It is a self number, because there is not a number n which added to its sum of digits gives 180415228.

It is a congruent number.

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, 15925 + ... + 24787.

Almost surely, 2^180415228 is an apocalyptic number.

It is an amenable number.

180415228 is an abundant number, since it is smaller than the sum of its proper divisors (180952324).

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

180415228 is a wasteful number, since it uses less digits than its factorization.

180415228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601 (or 9599 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 180415228 is about 13431.8735848727. The cubic root of 180415228 is about 565.0554444767.

The spelling of 180415228 in words is "one hundred eighty million, four hundred fifteen thousand, two hundred twenty-eight".