216344332 has 6 divisors (see below), whose sum is σ = 378602588. Its totient is φ = 108172164.

The previous prime is 216344311. The next prime is 216344339. The reversal of 216344332 is 233443612.

It is a self number, because there is not a number n which added to its sum of digits gives 216344332.

It is not an unprimeable number, because it can be changed into a prime (216344339) by changing a digit.

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 as a sum of consecutive naturals, namely, 27043038 + ... + 27043045.

Almost surely, 2^216344332 is an apocalyptic number.

It is an amenable number.

216344332 is a deficient number, since it is larger than the sum of its proper divisors (162258256).

216344332 is a wasteful number, since it uses less digits than its factorization.

216344332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54086087 (or 54086085 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 216344332 is about 14708.6482043728. The cubic root of 216344332 is about 600.3186566592.

Adding to 216344332 its reverse (233443612), we get a palindrome (449787944).

The spelling of 216344332 in words is "two hundred sixteen million, three hundred forty-four thousand, three hundred thirty-two".