340824 has 32 divisors (see below), whose sum is σ = 930240. Its totient is φ = 103200.

The previous prime is 340819. The next prime is 340849. The reversal of 340824 is 428043.

It is a happy number.

340824 is nontrivially palindromic in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 340824.

It is a congruent number.

It is an unprimeable number.

340824 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (29070).

2³⁴⁰⁸²⁴ is an apocalyptic number.

It is an amenable number.

340824 is an abundant number, since it is smaller than the sum of its proper divisors (589416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340824 is a wasteful number, since it uses less digits than its factorization.

340824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 340824 is about 583.8013360725. The cubic root of 340824 is about 69.8516586518.

Adding to 340824 its reverse (428043), we get a palindrome (768867).

The spelling of 340824 in words is "three hundred forty thousand, eight hundred twenty-four".