340243504643 has 8 divisors (see below), whose sum is σ = 389235108960. Its totient is φ = 291348247680.

The previous prime is 340243504571. The next prime is 340243504661. The reversal of 340243504643 is 346405342043.

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

It is not a de Polignac number, because 340243504643 - 2¹⁸ = 340243242499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340243504597 and 340243504606.

It is not an unprimeable number, because it can be changed into a prime (340243500643) 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, 24079268 + ... + 24093393.

It is an arithmetic number, because the mean of its divisors is an integer number (48654388620).

Almost surely, 2^340243504643 is an apocalyptic number.

340243504643 is a deficient number, since it is larger than the sum of its proper divisors (48991604317).

340243504643 is a wasteful number, since it uses less digits than its factorization.

340243504643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48173677.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 340243504643 its reverse (346405342043), we get a palindrome (686648846686).

The spelling of 340243504643 in words is "three hundred forty billion, two hundred forty-three million, five hundred four thousand, six hundred forty-three".