343411221 has 8 divisors (see below), whose sum is σ = 466521120. Its totient is φ = 224621072.

The previous prime is 343411207. The next prime is 343411231. The reversal of 343411221 is 122114343.

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 343411221 - 2¹⁹ = 342886933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343411231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1079751 + ... + 1080068.

It is an arithmetic number, because the mean of its divisors is an integer number (58315140).

Almost surely, 2^343411221 is an apocalyptic number.

It is an amenable number.

343411221 is a deficient number, since it is larger than the sum of its proper divisors (123109899).

343411221 is a wasteful number, since it uses less digits than its factorization.

343411221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159875.

The product of its digits is 576, while the sum is 21.

The square root of 343411221 is about 18531.3577754033. The cubic root of 343411221 is about 700.2796304574.

Adding to 343411221 its reverse (122114343), we get a palindrome (465525564).

The spelling of 343411221 in words is "three hundred forty-three million, four hundred eleven thousand, two hundred twenty-one".