340304505243 has 8 divisors (see below), whose sum is σ = 454011210000. Its totient is φ = 226733735328.

The previous prime is 340304505221. The next prime is 340304505253. The reversal of 340304505243 is 342505403043.

It is a happy number.

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

It is not a de Polignac number, because 340304505243 - 2⁶ = 340304505179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340304505253) 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, 33977868 + ... + 33987881.

It is an arithmetic number, because the mean of its divisors is an integer number (56751401250).

Almost surely, 2^340304505243 is an apocalyptic number.

340304505243 is a deficient number, since it is larger than the sum of its proper divisors (113706704757).

340304505243 is a wasteful number, since it uses less digits than its factorization.

340304505243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67967421.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 340304505243 its reverse (342505403043), we get a palindrome (682809908286).

The spelling of 340304505243 in words is "three hundred forty billion, three hundred four million, five hundred five thousand, two hundred forty-three".