405343 has 2 divisors, whose sum is σ = 405344. Its totient is φ = 405342.

The previous prime is 405341. The next prime is 405347. The reversal of 405343 is 343504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405343 - 2¹ = 405341 is a prime.

Together with 405341, it forms a pair of twin primes.

405343 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 405343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405341) 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 as a sum of consecutive naturals, namely, 202671 + 202672.

It is an arithmetic number, because the mean of its divisors is an integer number (202672).

2⁴⁰⁵³⁴³ is an apocalyptic number.

405343 is a deficient number, since it is larger than the sum of its proper divisors (1).

405343 is an equidigital number, since it uses as much as digits as its factorization.

405343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 405343 is about 636.6655322852. The cubic root of 405343 is about 74.0072430213.

Adding to 405343 its reverse (343504), we get a palindrome (748847).

It can be divided in two parts, 4053 and 43, that added together give a 12-th power (4096 = 2¹²).

The spelling of 405343 in words is "four hundred five thousand, three hundred forty-three".