340507 has 4 divisors (see below), whose sum is σ = 342760. Its totient is φ = 338256.

The previous prime is 340481. The next prime is 340519. The reversal of 340507 is 705043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340507 is a prime.

It is a Duffinian number.

340507 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (340577) 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, 882 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (85690).

2³⁴⁰⁵⁰⁷ is an apocalyptic number.

340507 is a deficient number, since it is larger than the sum of its proper divisors (2253).

340507 is a wasteful number, since it uses less digits than its factorization.

340507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 340507 is about 583.5297764468. The cubic root of 340507 is about 69.8299956191.

The spelling of 340507 in words is "three hundred forty thousand, five hundred seven".