216830341 has 12 divisors (see below), whose sum is σ = 271634412. Its totient is φ = 171557568.

The previous prime is 216830333. The next prime is 216830353. The reversal of 216830341 is 143038612.

It can be written as a sum of positive squares in 2 ways, for example, as 35820225 + 181010116 = 5985^2 + 13454^2 .

It is not a de Polignac number, because 216830341 - 2³ = 216830333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216830371) 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 in 11 ways as a sum of consecutive naturals, for example, 169560 + ... + 170833.

It is an arithmetic number, because the mean of its divisors is an integer number (22636201).

Almost surely, 2^216830341 is an apocalyptic number.

It is an amenable number.

216830341 is a deficient number, since it is larger than the sum of its proper divisors (54804071).

216830341 is a wasteful number, since it uses less digits than its factorization.

216830341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340420 (or 340413 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 216830341 is about 14725.1601349527. The cubic root of 216830341 is about 600.7678511810.

Adding to 216830341 its reverse (143038612), we get a palindrome (359868953).

The spelling of 216830341 in words is "two hundred sixteen million, eight hundred thirty thousand, three hundred forty-one".