216355230 has 96 divisors (see below), whose sum is σ = 692362944. Its totient is φ = 45646848.

The previous prime is 216355219. The next prime is 216355291. The reversal of 216355230 is 32553612.

216355230 is a `hidden beast` number, since 2 + 1 + 635 + 5 + 23 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 216355194 and 216355203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5019 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (7212114).

Almost surely, 2^216355230 is an apocalyptic number.

216355230 is an abundant number, since it is smaller than the sum of its proper divisors (476007714).

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

216355230 is a wasteful number, since it uses less digits than its factorization.

216355230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26450 (or 26447 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 216355230 is about 14709.0186620318. The cubic root of 216355230 is about 600.3287365209.

The spelling of 216355230 in words is "two hundred sixteen million, three hundred fifty-five thousand, two hundred thirty".