343409904343 has 24 divisors (see below), whose sum is σ = 383793578000. Its totient is φ = 306962092800.

The previous prime is 343409904307. The next prime is 343409904371.

It is a happy number.

343409904343 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 343409904343 - 2²¹ = 343407807191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343409904293 and 343409904302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343409904043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25819471 + ... + 25832767.

Almost surely, 2^343409904343 is an apocalyptic number.

343409904343 is a deficient number, since it is larger than the sum of its proper divisors (40383673657).

343409904343 is a wasteful number, since it uses less digits than its factorization.

343409904343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16879 (or 16868 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 46.

The spelling of 343409904343 in words is "three hundred forty-three billion, four hundred nine million, nine hundred four thousand, three hundred forty-three".