340511 has 4 divisors (see below), whose sum is σ = 349752. Its totient is φ = 331272.

The previous prime is 340481. The next prime is 340519. The reversal of 340511 is 115043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115043 = 29 ⋅3967.

It is a cyclic number.

It is not a de Polignac number, because 340511 - 2⁶ = 340447 is a prime.

It is a super-2 number, since 2×340511² = 231895482242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340519) 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, 4565 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (87438).

2³⁴⁰⁵¹¹ is an apocalyptic number.

340511 is a deficient number, since it is larger than the sum of its proper divisors (9241).

340511 is an equidigital number, since it uses as much as digits as its factorization.

340511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 340511 is about 583.5332038539. The cubic root of 340511 is about 69.8302690534.

Adding to 340511 its reverse (115043), we get a palindrome (455554).

The spelling of 340511 in words is "three hundred forty thousand, five hundred eleven".