340281 has 10 divisors (see below), whose sum is σ = 508442. Its totient is φ = 226800.

The previous prime is 340267. The next prime is 340283. The reversal of 340281 is 182043.

It is a happy number.

340281 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210681 + 129600 = 459^2 + 360^2 .

It is not a de Polignac number, because 340281 - 2⁹ = 339769 is a prime.

It is a super-2 number, since 2×340281² = 231582317922, which contains 22 as substring.

It is a Duffinian number.

340281 is strictly pandigital in base 7.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340281.

It is not an unprimeable number, because it can be changed into a prime (340283) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2020 + ... + 2181.

2³⁴⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

340281 is a deficient number, since it is larger than the sum of its proper divisors (168161).

340281 is an equidigital number, since it uses as much as digits as its factorization.

340281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 340281 is about 583.3360952316. The cubic root of 340281 is about 69.8145431009.

The spelling of 340281 in words is "three hundred forty thousand, two hundred eighty-one".