340661680 has 40 divisors (see below), whose sum is σ = 797382000. Its totient is φ = 135345408.

The previous prime is 340661677. The next prime is 340661683. The reversal of 340661680 is 86166043.

It is an interprime number because it is at equal distance from previous prime (340661677) and next prime (340661683).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (340661683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2370 + ... + 26209.

It is an arithmetic number, because the mean of its divisors is an integer number (19934550).

Almost surely, 2^340661680 is an apocalyptic number.

It is an amenable number.

340661680 is an abundant number, since it is smaller than the sum of its proper divisors (456720320).

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

340661680 is a wasteful number, since it uses less digits than its factorization.

340661680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28741 (or 28735 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 340661680 is about 18457.0225117704. The cubic root of 340661680 is about 698.4056776453.

The spelling of 340661680 in words is "three hundred forty million, six hundred sixty-one thousand, six hundred eighty".