343425321 has 12 divisors (see below), whose sum is σ = 496220400. Its totient is φ = 228875640.

The previous prime is 343425293. The next prime is 343425373. The reversal of 343425321 is 123524343.

It is not a de Polignac number, because 343425321 - 2⁵ = 343425289 is a prime.

It is a super-2 number, since 2×343425321² = 235881902207906082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343420321) 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 11 ways as a sum of consecutive naturals, for example, 46330 + ... + 53228.

It is an arithmetic number, because the mean of its divisors is an integer number (41351700).

Almost surely, 2^343425321 is an apocalyptic number.

It is an amenable number.

343425321 is a deficient number, since it is larger than the sum of its proper divisors (152795079).

343425321 is a wasteful number, since it uses less digits than its factorization.

343425321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436 (or 12433 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 343425321 is about 18531.7382077343. The cubic root of 343425321 is about 700.2892145042.

Adding to 343425321 its reverse (123524343), we get a palindrome (466949664).

The spelling of 343425321 in words is "three hundred forty-three million, four hundred twenty-five thousand, three hundred twenty-one".