343426 has 4 divisors (see below), whose sum is σ = 515142. Its totient is φ = 171712.

The previous prime is 343423. The next prime is 343433. The reversal of 343426 is 624343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624343 = 421 ⋅1483.

It can be written as a sum of positive squares in only one way, i.e., 301401 + 42025 = 549^2 + 205^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 3⁴ + 4⁴ + 4⁶ + 3¹⁰ + 2³ + 6⁷ .

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 343397 and 343406.

It is not an unprimeable number, because it can be changed into a prime (343423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85855 + ... + 85858.

2³⁴³⁴²⁶ is an apocalyptic number.

343426 is a deficient number, since it is larger than the sum of its proper divisors (171716).

343426 is a wasteful number, since it uses less digits than its factorization.

343426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171715.

The product of its digits is 1728, while the sum is 22.

The square root of 343426 is about 586.0255967106. The cubic root of 343426 is about 70.0289676027.

Adding to 343426 its reverse (624343), we get a palindrome (967769).

The spelling of 343426 in words is "three hundred forty-three thousand, four hundred twenty-six".