340300243 has 8 divisors (see below), whose sum is σ = 342295200. Its totient is φ = 338311680.

The previous prime is 340300223. The next prime is 340300267. The reversal of 340300243 is 342003043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340300243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340300243.

It is not an unprimeable number, because it can be changed into a prime (340300223) 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, 138421 + ... + 140857.

It is an arithmetic number, because the mean of its divisors is an integer number (42786900).

Almost surely, 2^340300243 is an apocalyptic number.

340300243 is a deficient number, since it is larger than the sum of its proper divisors (1994957).

340300243 is a wasteful number, since it uses less digits than its factorization.

340300243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 340300243 is about 18447.2285994401. The cubic root of 340300243 is about 698.1585908775.

Adding to 340300243 its reverse (342003043), we get a palindrome (682303286).

The spelling of 340300243 in words is "three hundred forty million, three hundred thousand, two hundred forty-three".