343022213 has 4 divisors (see below), whose sum is σ = 344104620. Its totient is φ = 341939808.

The previous prime is 343022203. The next prime is 343022231. The reversal of 343022213 is 312220343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64032004 + 278990209 = 8002^2 + 16703^2 .

It is a cyclic number.

It is not a de Polignac number, because 343022213 - 2¹⁴ = 343005829 is a prime.

It is a super-2 number, since 2×343022213² = 235328477222834738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343022203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540728 + ... + 541361.

It is an arithmetic number, because the mean of its divisors is an integer number (86026155).

Almost surely, 2^343022213 is an apocalyptic number.

It is an amenable number.

343022213 is a deficient number, since it is larger than the sum of its proper divisors (1082407).

343022213 is a wasteful number, since it uses less digits than its factorization.

343022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082406.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 343022213 is about 18520.8588623746. The cubic root of 343022213 is about 700.0151105582.

Adding to 343022213 its reverse (312220343), we get a palindrome (655242556).

The spelling of 343022213 in words is "three hundred forty-three million, twenty-two thousand, two hundred thirteen".