240646345 has 16 divisors (see below), whose sum is σ = 297209088. Its totient is φ = 186958720.

The previous prime is 240646327. The next prime is 240646349. The reversal of 240646345 is 543646042.

It is not a de Polignac number, because 240646345 - 2⁵ = 240646313 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 240646345.

It is not an unprimeable number, because it can be changed into a prime (240646349) 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 15 ways as a sum of consecutive naturals, for example, 26877 + ... + 34693.

It is an arithmetic number, because the mean of its divisors is an integer number (18575568).

Almost surely, 2^240646345 is an apocalyptic number.

It is an amenable number.

240646345 is a deficient number, since it is larger than the sum of its proper divisors (56562743).

240646345 is a wasteful number, since it uses less digits than its factorization.

240646345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 240646345 is about 15512.7800538782. The cubic root of 240646345 is about 622.0038745222.

The spelling of 240646345 in words is "two hundred forty million, six hundred forty-six thousand, three hundred forty-five".