240666343 has 2 divisors, whose sum is σ = 240666344. Its totient is φ = 240666342.

The previous prime is 240666281. The next prime is 240666347. The reversal of 240666343 is 343666042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240666343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240666299 and 240666308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240666347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120333171 + 120333172.

It is an arithmetic number, because the mean of its divisors is an integer number (120333172).

Almost surely, 2^240666343 is an apocalyptic number.

240666343 is a deficient number, since it is larger than the sum of its proper divisors (1).

240666343 is an equidigital number, since it uses as much as digits as its factorization.

240666343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 240666343 is about 15513.4246058051. The cubic root of 240666343 is about 622.0211038011.

The spelling of 240666343 in words is "two hundred forty million, six hundred sixty-six thousand, three hundred forty-three".