240643835 has 16 divisors (see below), whose sum is σ = 305337600. Its totient is φ = 181562976.

The previous prime is 240643813. The next prime is 240643849. The reversal of 240643835 is 538346042.

It is a cyclic number.

It is not a de Polignac number, because 240643835 - 2²⁴ = 223866619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240643795 and 240643804.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15986 + ... + 27144.

It is an arithmetic number, because the mean of its divisors is an integer number (19083600).

Almost surely, 2^240643835 is an apocalyptic number.

240643835 is a deficient number, since it is larger than the sum of its proper divisors (64693765).

240643835 is a wasteful number, since it uses less digits than its factorization.

240643835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11410.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 240643835 is about 15512.6991526298. The cubic root of 240643835 is about 622.0017119641.

Adding to 240643835 its reverse (538346042), we get a palindrome (778989877).

The spelling of 240643835 in words is "two hundred forty million, six hundred forty-three thousand, eight hundred thirty-five".