340641693 has 40 divisors (see below), whose sum is σ = 583494912. Its totient is φ = 194003424.

The previous prime is 340641683. The next prime is 340641727. The reversal of 340641693 is 396146043.

340641693 is a `hidden beast` number, since 3 + 4 + 0 + 641 + 6 + 9 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-340641693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340641683) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 207271 + ... + 208907.

Almost surely, 2^340641693 is an apocalyptic number.

It is an amenable number.

340641693 is a deficient number, since it is larger than the sum of its proper divisors (242853219).

340641693 is a wasteful number, since it uses less digits than its factorization.

340641693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 340641693 is about 18456.4810567995. The cubic root of 340641693 is about 698.3920186320.

The spelling of 340641693 in words is "three hundred forty million, six hundred forty-one thousand, six hundred ninety-three".