340826 has 4 divisors (see below), whose sum is σ = 511242. Its totient is φ = 170412.

The previous prime is 340819. The next prime is 340849. The reversal of 340826 is 628043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 628043 = 13 ⋅48311.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 10201 = 575^2 + 101^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85205 + ... + 85208.

2³⁴⁰⁸²⁶ is an apocalyptic number.

340826 is a deficient number, since it is larger than the sum of its proper divisors (170416).

340826 is a wasteful number, since it uses less digits than its factorization.

340826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170415.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 340826 is about 583.8030489814. The cubic root of 340826 is about 69.8517952844.

Adding to 340826 its reverse (628043), we get a palindrome (968869).

The spelling of 340826 in words is "three hundred forty thousand, eight hundred twenty-six".