340803 has 12 divisors (see below), whose sum is σ = 518440. Its totient is φ = 215136.

The previous prime is 340801. The next prime is 340811. The reversal of 340803 is 308043.

It is not a de Polignac number, because 340803 - 2¹ = 340801 is a prime.

It is a super-2 number, since 2×340803² = 232293369618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826 + ... + 1167.

2³⁴⁰⁸⁰³ is an apocalyptic number.

340803 is a deficient number, since it is larger than the sum of its proper divisors (177637).

340803 is a wasteful number, since it uses less digits than its factorization.

340803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 340803 is about 583.7833502251. The cubic root of 340803 is about 69.8502239769.

Adding to 340803 its reverse (308043), we get a palindrome (648846).

The spelling of 340803 in words is "three hundred forty thousand, eight hundred three".