216032308 has 6 divisors (see below), whose sum is σ = 378056546. Its totient is φ = 108016152.

The previous prime is 216032249. The next prime is 216032347. The reversal of 216032308 is 803230612.

It can be written as a sum of positive squares in only one way, i.e., 210888484 + 5143824 = 14522^2 + 2268^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27004035 + ... + 27004042.

Almost surely, 2^216032308 is an apocalyptic number.

It is an amenable number.

216032308 is a deficient number, since it is larger than the sum of its proper divisors (162024238).

216032308 is a wasteful number, since it uses less digits than its factorization.

216032308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54008081 (or 54008079 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 216032308 is about 14698.0375560821. The cubic root of 216032308 is about 600.0299133234.

The spelling of 216032308 in words is "two hundred sixteen million, thirty-two thousand, three hundred eight".