240643115 has 8 divisors (see below), whose sum is σ = 291421680. Its totient is φ = 190747872.

The previous prime is 240643097. The next prime is 240643121. The reversal of 240643115 is 511346042.

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

It is a cyclic number.

It is not a de Polignac number, because 240643115 - 2²⁰ = 239594539 is a prime.

It is an unprimeable number.

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, 220229 + ... + 221318.

It is an arithmetic number, because the mean of its divisors is an integer number (36427710).

Almost surely, 2^240643115 is an apocalyptic number.

240643115 is a deficient number, since it is larger than the sum of its proper divisors (50778565).

240643115 is a wasteful number, since it uses less digits than its factorization.

240643115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441661.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 240643115 is about 15512.6759458193. The cubic root of 240643115 is about 622.0010916259.

Adding to 240643115 its reverse (511346042), we get a palindrome (751989157).

The spelling of 240643115 in words is "two hundred forty million, six hundred forty-three thousand, one hundred fifteen".