216320030 has 32 divisors (see below), whose sum is σ = 403286688. Its totient is φ = 83491200.

The previous prime is 216320029. The next prime is 216320047. The reversal of 216320030 is 30023612.

It is a junction number, because it is equal to n+sod(n) for n = 216319990 and 216320008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28985 + ... + 35675.

It is an arithmetic number, because the mean of its divisors is an integer number (12602709).

Almost surely, 2^216320030 is an apocalyptic number.

216320030 is a deficient number, since it is larger than the sum of its proper divisors (186966658).

216320030 is a wasteful number, since it uses less digits than its factorization.

216320030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 216320030 is about 14707.8220685457. The cubic root of 216320030 is about 600.2961778478.

Adding to 216320030 its reverse (30023612), we get a palindrome (246343642).

The spelling of 216320030 in words is "two hundred sixteen million, three hundred twenty thousand, thirty".