40002140144 has 20 divisors (see below), whose sum is σ = 77825748000. Its totient is φ = 19918076160.

The previous prime is 40002140141. The next prime is 40002140177. The reversal of 40002140144 is 44104120004.

It is a happy number.

It is a super-2 number, since 2×40002140144² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002140141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5183144 + ... + 5190855.

It is an arithmetic number, because the mean of its divisors is an integer number (3891287400).

Almost surely, 2^40002140144 is an apocalyptic number.

It is an amenable number.

40002140144 is a deficient number, since it is larger than the sum of its proper divisors (37823607856).

40002140144 is a wasteful number, since it uses less digits than its factorization.

40002140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10374248 (or 10374242 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 40002140144 its reverse (44104120004), we get a palindrome (84106260148).

The spelling of 40002140144 in words is "forty billion, two million, one hundred forty thousand, one hundred forty-four".