343302421 has 8 divisors (see below), whose sum is σ = 428013504. Its totient is φ = 267508320.

The previous prime is 343302413. The next prime is 343302451. The reversal of 343302421 is 124203343.

It is a happy number.

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 343302421 - 2³ = 343302413 is a prime.

It is a super-2 number, since 2×343302421² = 235713104528922482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343302392 and 343302401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343302451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2229160 + ... + 2229313.

It is an arithmetic number, because the mean of its divisors is an integer number (53501688).

Almost surely, 2^343302421 is an apocalyptic number.

It is an amenable number.

343302421 is a deficient number, since it is larger than the sum of its proper divisors (84711083).

343302421 is a wasteful number, since it uses less digits than its factorization.

343302421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458491.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 343302421 is about 18528.4219781394. The cubic root of 343302421 is about 700.2056681378.

Adding to 343302421 its reverse (124203343), we get a palindrome (467505764).

The spelling of 343302421 in words is "three hundred forty-three million, three hundred two thousand, four hundred twenty-one".