343010221 has 4 divisors (see below), whose sum is σ = 346216032. Its totient is φ = 339804412.

The previous prime is 343010219. The next prime is 343010263. The reversal of 343010221 is 122010343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343010221 - 2¹ = 343010219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343010195 and 343010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343010321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602745 + ... + 1602958.

It is an arithmetic number, because the mean of its divisors is an integer number (86554008).

Almost surely, 2^343010221 is an apocalyptic number.

It is an amenable number.

343010221 is a deficient number, since it is larger than the sum of its proper divisors (3205811).

343010221 is a wasteful number, since it uses less digits than its factorization.

343010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205810.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 343010221 is about 18520.5351164592. The cubic root of 343010221 is about 700.0069529922.

Adding to 343010221 its reverse (122010343), we get a palindrome (465020564).

The spelling of 343010221 in words is "three hundred forty-three million, ten thousand, two hundred twenty-one".