340660505 has 8 divisors (see below), whose sum is σ = 411734400. Its totient is φ = 270567216.

The previous prime is 340660493. The next prime is 340660511. The reversal of 340660505 is 505066043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340660505 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244385 + ... + 245774.

It is an arithmetic number, because the mean of its divisors is an integer number (51466800).

Almost surely, 2^340660505 is an apocalyptic number.

It is an amenable number.

340660505 is a deficient number, since it is larger than the sum of its proper divisors (71073895).

340660505 is a wasteful number, since it uses less digits than its factorization.

340660505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490303.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 340660505 is about 18456.9906810401. The cubic root of 340660505 is about 698.4048746711.

The spelling of 340660505 in words is "three hundred forty million, six hundred sixty thousand, five hundred five".