345217216 has 28 divisors (see below), whose sum is σ = 686531520. Its totient is φ = 172232960.

The previous prime is 345217193. The next prime is 345217259. The reversal of 345217216 is 612712543.

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 in 3 ways as a sum of consecutive naturals, for example, 25026 + ... + 36286.

Almost surely, 2^345217216 is an apocalyptic number.

It is an amenable number.

345217216 is a deficient number, since it is larger than the sum of its proper divisors (341314304).

345217216 is a wasteful number, since it uses less digits than its factorization.

345217216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752 (or 11742 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 345217216 is about 18580.0219590828. The cubic root of 345217216 is about 701.5050718259.

Adding to 345217216 its reverse (612712543), we get a palindrome (957929759).

The spelling of 345217216 in words is "three hundred forty-five million, two hundred seventeen thousand, two hundred sixteen".