240705385 has 8 divisors (see below), whose sum is σ = 289437696. Its totient is φ = 192170160.

The previous prime is 240705347. The next prime is 240705389. The reversal of 240705385 is 583507042.

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 240705385 - 2⁹ = 240704873 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 240705385.

It is not an unprimeable number, because it can be changed into a prime (240705389) 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 in 7 ways as a sum of consecutive naturals, for example, 46569 + ... + 51478.

It is an arithmetic number, because the mean of its divisors is an integer number (36179712).

Almost surely, 2^240705385 is an apocalyptic number.

It is an amenable number.

240705385 is a deficient number, since it is larger than the sum of its proper divisors (48732311).

240705385 is an equidigital number, since it uses as much as digits as its factorization.

240705385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98543.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 240705385 is about 15514.6828842874. The cubic root of 240705385 is about 622.0547376896.

The spelling of 240705385 in words is "two hundred forty million, seven hundred five thousand, three hundred eighty-five".