180390216 has 16 divisors (see below), whose sum is σ = 450975600. Its totient is φ = 60130064.

The previous prime is 180390193. The next prime is 180390253. The reversal of 180390216 is 612093081.

180390216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3758106 + ... + 3758153.

It is an arithmetic number, because the mean of its divisors is an integer number (28185975).

Almost surely, 2^180390216 is an apocalyptic number.

It is an amenable number.

180390216 is an abundant number, since it is smaller than the sum of its proper divisors (270585384).

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

180390216 is a wasteful number, since it uses less digits than its factorization.

180390216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516268 (or 7516264 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 180390216 is about 13430.9424836830. The cubic root of 180390216 is about 565.0293309753.

The spelling of 180390216 in words is "one hundred eighty million, three hundred ninety thousand, two hundred sixteen".