216430316 has 12 divisors (see below), whose sum is σ = 388989888. Its totient is φ = 105290352.

The previous prime is 216430297. The next prime is 216430321. The reversal of 216430316 is 613034612.

216430316 is nontrivially palindromic in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731036 + ... + 731331.

It is an arithmetic number, because the mean of its divisors is an integer number (32415824).

Almost surely, 2^216430316 is an apocalyptic number.

It is an amenable number.

216430316 is a deficient number, since it is larger than the sum of its proper divisors (172559572).

216430316 is a wasteful number, since it uses less digits than its factorization.

216430316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462408 (or 1462406 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 216430316 is about 14711.5708202761. The cubic root of 216430316 is about 600.3981764415.

Adding to 216430316 its reverse (613034612), we get a palindrome (829464928).

The spelling of 216430316 in words is "two hundred sixteen million, four hundred thirty thousand, three hundred sixteen".