216306708 has 48 divisors (see below), whose sum is σ = 552847680. Its totient is φ = 65519104.

The previous prime is 216306703. The next prime is 216306719. The reversal of 216306708 is 807603612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216306703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12366 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (11517660).

Almost surely, 2^216306708 is an apocalyptic number.

It is an amenable number.

216306708 is an abundant number, since it is smaller than the sum of its proper divisors (336540972).

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

216306708 is a wasteful number, since it uses less digits than its factorization.

216306708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36616 (or 36614 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 216306708 is about 14707.3691733090. The cubic root of 216306708 is about 600.2838545787.

The spelling of 216306708 in words is "two hundred sixteen million, three hundred six thousand, seven hundred eight".