340646660 has 24 divisors (see below), whose sum is σ = 718491480. Its totient is φ = 135661824.

The previous prime is 340646659. The next prime is 340646671. The reversal of 340646660 is 66646043.

It can be written as a sum of positive squares in 4 ways, for example, as 20666116 + 319980544 = 4546^2 + 17888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 340646660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32609 + ... + 41768.

It is an arithmetic number, because the mean of its divisors is an integer number (29937145).

Almost surely, 2^340646660 is an apocalyptic number.

It is an amenable number.

340646660 is an abundant number, since it is smaller than the sum of its proper divisors (377844820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340646660 is a wasteful number, since it uses less digits than its factorization.

340646660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74615 (or 74613 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 340646660 is about 18456.6156160874. The cubic root of 340646660 is about 698.3954131042.

The spelling of 340646660 in words is "three hundred forty million, six hundred forty-six thousand, six hundred sixty".