216766230 has 16 divisors (see below), whose sum is σ = 520239024. Its totient is φ = 57804320.

The previous prime is 216766223. The next prime is 216766259. The reversal of 216766230 is 32667612.

It is a junction number, because it is equal to n+sod(n) for n = 216766191 and 216766200.

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, 3612741 + ... + 3612800.

It is an arithmetic number, because the mean of its divisors is an integer number (32514939).

Almost surely, 2^216766230 is an apocalyptic number.

216766230 is an abundant number, since it is smaller than the sum of its proper divisors (303472794).

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

216766230 is a wasteful number, since it uses less digits than its factorization.

216766230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225551.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 216766230 is about 14722.9830537157. The cubic root of 216766230 is about 600.7086349536.

The spelling of 216766230 in words is "two hundred sixteen million, seven hundred sixty-six thousand, two hundred thirty".