340069 has 4 divisors (see below), whose sum is σ = 343980. Its totient is φ = 336160.

The previous prime is 340063. The next prime is 340073. The reversal of 340069 is 960043.

340069 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 148225 = 438^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 340069 - 2³ = 340061 is a prime.

It is a super-2 number, since 2×340069² = 231293849522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (85995).

2³⁴⁰⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

340069 is a deficient number, since it is larger than the sum of its proper divisors (3911).

340069 is an equidigital number, since it uses as much as digits as its factorization.

340069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 340069 is about 583.1543534949. The cubic root of 340069 is about 69.8000415979.

The spelling of 340069 in words is "three hundred forty thousand, sixty-nine".