343100421 has 32 divisors (see below), whose sum is σ = 529363200. Its totient is φ = 219360960.

The previous prime is 343100419. The next prime is 343100447. The reversal of 343100421 is 124001343.

It is not a de Polignac number, because 343100421 - 2¹ = 343100419 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 343100394 and 343100403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343100411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121536 + ... + 124326.

It is an arithmetic number, because the mean of its divisors is an integer number (16542600).

Almost surely, 2^343100421 is an apocalyptic number.

It is an amenable number.

343100421 is a deficient number, since it is larger than the sum of its proper divisors (186262779).

343100421 is a wasteful number, since it uses less digits than its factorization.

343100421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 343100421 is about 18522.9700912138. The cubic root of 343100421 is about 700.0683069397.

Adding to 343100421 its reverse (124001343), we get a palindrome (467101764).

The spelling of 343100421 in words is "three hundred forty-three million, one hundred thousand, four hundred twenty-one".