340216205 has 8 divisors (see below), whose sum is σ = 466582272. Its totient is φ = 233291088.

The previous prime is 340216199. The next prime is 340216213. The reversal of 340216205 is 502612043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340216205 - 2¹⁶ = 340150669 is a prime.

It is a super-2 number, since 2×340216205² = 231494132289204050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4860197 + ... + 4860266.

It is an arithmetic number, because the mean of its divisors is an integer number (58322784).

Almost surely, 2^340216205 is an apocalyptic number.

340216205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340216205 is a deficient number, since it is larger than the sum of its proper divisors (126366067).

340216205 is an equidigital number, since it uses as much as digits as its factorization.

340216205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720475.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 340216205 is about 18444.9506640706. The cubic root of 340216205 is about 698.1011154733.

Adding to 340216205 its reverse (502612043), we get a palindrome (842828248).

The spelling of 340216205 in words is "three hundred forty million, two hundred sixteen thousand, two hundred five".