343360405 has 4 divisors (see below), whose sum is σ = 412032492. Its totient is φ = 274688320.

The previous prime is 343360357. The next prime is 343360421. The reversal of 343360405 is 504063343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112381201 + 230979204 = 10601^2 + 15198^2 .

It is not a de Polignac number, because 343360405 - 2¹⁷ = 343229333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34336036 + ... + 34336045.

It is an arithmetic number, because the mean of its divisors is an integer number (103008123).

Almost surely, 2^343360405 is an apocalyptic number.

It is an amenable number.

343360405 is a deficient number, since it is larger than the sum of its proper divisors (68672087).

343360405 is an equidigital number, since it uses as much as digits as its factorization.

343360405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68672086.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 343360405 is about 18529.9866432764. The cubic root of 343360405 is about 700.2450876480.

The spelling of 343360405 in words is "three hundred forty-three million, three hundred sixty thousand, four hundred five".