40040344144 has 40 divisors (see below), whose sum is σ = 81017493120. Its totient is φ = 19134031488.

The previous prime is 40040344133. The next prime is 40040344153. The reversal of 40040344144 is 44144304004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411237 + ... + 499195.

It is an arithmetic number, because the mean of its divisors is an integer number (2025437328).

Almost surely, 2^40040344144 is an apocalyptic number.

It is an amenable number.

40040344144 is an abundant number, since it is smaller than the sum of its proper divisors (40977148976).

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

40040344144 is a wasteful number, since it uses less digits than its factorization.

40040344144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89227 (or 89221 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40040344144 its reverse (44144304004), we get a palindrome (84184648148).

The spelling of 40040344144 in words is "forty billion, forty million, three hundred forty-four thousand, one hundred forty-four".