240343291 has 2 divisors, whose sum is σ = 240343292. Its totient is φ = 240343290.

The previous prime is 240343283. The next prime is 240343303. The reversal of 240343291 is 192343042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240343291 - 2³ = 240343283 is a prime.

It is not a weakly prime, because it can be changed into another prime (240343241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120171645 + 120171646.

It is an arithmetic number, because the mean of its divisors is an integer number (120171646).

Almost surely, 2^240343291 is an apocalyptic number.

240343291 is a deficient number, since it is larger than the sum of its proper divisors (1).

240343291 is an equidigital number, since it uses as much as digits as its factorization.

240343291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 240343291 is about 15503.0090950112. The cubic root of 240343291 is about 621.7426614047.

The spelling of 240343291 in words is "two hundred forty million, three hundred forty-three thousand, two hundred ninety-one".