2440144138 has 16 divisors (see below), whose sum is σ = 3672357696. Its totient is φ = 1216032480.

The previous prime is 2440144123. The next prime is 2440144139. The reversal of 2440144138 is 8314410442.

It is not an unprimeable number, because it can be changed into a prime (2440144139) 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 7 ways as a sum of consecutive naturals, for example, 1106545 + ... + 1108747.

It is an arithmetic number, because the mean of its divisors is an integer number (229522356).

Almost surely, 2^2440144138 is an apocalyptic number.

2440144138 is a deficient number, since it is larger than the sum of its proper divisors (1232213558).

2440144138 is a wasteful number, since it uses less digits than its factorization.

2440144138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 2440144138 is about 49397.8151136262. The cubic root of 2440144138 is about 1346.2896081757.

The spelling of 2440144138 in words is "two billion, four hundred forty million, one hundred forty-four thousand, one hundred thirty-eight".