2440689985 has 8 divisors (see below), whose sum is σ = 3023306496. Its totient is φ = 1889566320.

The previous prime is 2440689917. The next prime is 2440689989. The reversal of 2440689985 is 5899860442.

2440689985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2440689985 - 2⁷ = 2440689857 is a prime.

It is a super-3 number, since 3×2440689985³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2440689989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7873039 + ... + 7873348.

It is an arithmetic number, because the mean of its divisors is an integer number (377913312).

Almost surely, 2^2440689985 is an apocalyptic number.

It is an amenable number.

2440689985 is a deficient number, since it is larger than the sum of its proper divisors (582616511).

2440689985 is a wasteful number, since it uses less digits than its factorization.

2440689985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15746423.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The square root of 2440689985 is about 49403.3398162513. The cubic root of 2440689985 is about 1346.3899865842.

The spelling of 2440689985 in words is "two billion, four hundred forty million, six hundred eighty-nine thousand, nine hundred eighty-five".