343389431 has 8 divisors (see below), whose sum is σ = 428121984. Its totient is φ = 267576120.

The previous prime is 343389419. The next prime is 343389437. The reversal of 343389431 is 134983343.

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

It is not a de Polignac number, because 343389431 - 2¹⁴ = 343373047 is a prime.

It is a super-2 number, since 2×343389431² = 235832602645007522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343389437) 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, 2229725 + ... + 2229878.

It is an arithmetic number, because the mean of its divisors is an integer number (53515248).

Almost surely, 2^343389431 is an apocalyptic number.

343389431 is a deficient number, since it is larger than the sum of its proper divisors (84732553).

343389431 is a wasteful number, since it uses less digits than its factorization.

343389431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459621.

The product of its digits is 93312, while the sum is 38.

The square root of 343389431 is about 18530.7698436951. The cubic root of 343389431 is about 700.2648188507.

The spelling of 343389431 in words is "three hundred forty-three million, three hundred eighty-nine thousand, four hundred thirty-one".