2440144140 has 144 divisors (see below), whose sum is σ = 7966887264. Its totient is φ = 556416000.

The previous prime is 2440144139. The next prime is 2440144153. The reversal of 2440144140 is 414410442.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2440144140.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1766250 + ... + 1767630.

It is an arithmetic number, because the mean of its divisors is an integer number (55325606).

Almost surely, 2^2440144140 is an apocalyptic number.

2440144140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440144140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3983443632).

2440144140 is an abundant number, since it is smaller than the sum of its proper divisors (5526743124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2440144140 is a wasteful number, since it uses less digits than its factorization.

2440144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 2440144140 is about 49397.8151338700. The cubic root of 2440144140 is about 1346.2896085435.

Adding to 2440144140 its reverse (414410442), we get a palindrome (2854554582).

The spelling of 2440144140 in words is "two billion, four hundred forty million, one hundred forty-four thousand, one hundred forty".