240443689 has 12 divisors (see below), whose sum is σ = 257007360. Its totient is φ = 224878680.

The previous prime is 240443629. The next prime is 240443717. The reversal of 240443689 is 986344042.

It is not a de Polignac number, because 240443689 - 2⁷ = 240443561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240443629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24304 + ... + 32734.

It is an arithmetic number, because the mean of its divisors is an integer number (21417280).

Almost surely, 2^240443689 is an apocalyptic number.

It is an amenable number.

240443689 is a deficient number, since it is larger than the sum of its proper divisors (16563671).

240443689 is an equidigital number, since it uses as much as digits as its factorization.

240443689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548 (or 8529 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 240443689 is about 15506.2467734781. The cubic root of 240443689 is about 621.8292223535.

The spelling of 240443689 in words is "two hundred forty million, four hundred forty-three thousand, six hundred eighty-nine".