343341421 has 4 divisors (see below), whose sum is σ = 351715644. Its totient is φ = 334967200.

The previous prime is 343341377. The next prime is 343341443. The reversal of 343341421 is 124143343.

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 43705321 + 299636100 = 6611^2 + 17310^2 .

It is a cyclic number.

It is not a de Polignac number, because 343341421 - 2¹³ = 343333229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343341451) 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, 4187050 + ... + 4187131.

It is an arithmetic number, because the mean of its divisors is an integer number (87928911).

Almost surely, 2^343341421 is an apocalyptic number.

It is an amenable number.

343341421 is a deficient number, since it is larger than the sum of its proper divisors (8374223).

343341421 is an equidigital number, since it uses as much as digits as its factorization.

343341421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8374222.

The product of its digits is 3456, while the sum is 25.

The square root of 343341421 is about 18529.4743854217. The cubic root of 343341421 is about 700.2321821629.

Adding to 343341421 its reverse (124143343), we get a palindrome (467484764).

The spelling of 343341421 in words is "three hundred forty-three million, three hundred forty-one thousand, four hundred twenty-one".