343402439 has 8 divisors (see below), whose sum is σ = 357517680. Its totient is φ = 329541696.

The previous prime is 343402421. The next prime is 343402453. The reversal of 343402439 is 934204343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343402439 is a prime.

It is a super-2 number, since 2×343402439² = 235850470222297442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343402459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60869 + ... + 66270.

It is an arithmetic number, because the mean of its divisors is an integer number (44689710).

Almost surely, 2^343402439 is an apocalyptic number.

343402439 is a deficient number, since it is larger than the sum of its proper divisors (14115241).

343402439 is a wasteful number, since it uses less digits than its factorization.

343402439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127249.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 343402439 is about 18531.1208241704. The cubic root of 343402439 is about 700.2736610270.

The spelling of 343402439 in words is "three hundred forty-three million, four hundred two thousand, four hundred thirty-nine".