340218893 has 8 divisors (see below), whose sum is σ = 401364480. Its totient is φ = 282209040.

The previous prime is 340218889. The next prime is 340218917. The reversal of 340218893 is 398812043.

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

It is a cyclic number.

It is not a de Polignac number, because 340218893 - 2² = 340218889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340218833) 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, 783698 + ... + 784131.

It is an arithmetic number, because the mean of its divisors is an integer number (50170560).

Almost surely, 2^340218893 is an apocalyptic number.

It is an amenable number.

340218893 is a deficient number, since it is larger than the sum of its proper divisors (61145587).

340218893 is a wasteful number, since it uses less digits than its factorization.

340218893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567867.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 340218893 is about 18445.0235293968. The cubic root of 340218893 is about 698.1029540011.

The spelling of 340218893 in words is "three hundred forty million, two hundred eighteen thousand, eight hundred ninety-three".