4043120240040 has 192 divisors, whose sum is σ = 14144170881600. Its totient is φ = 921881705472.

The previous prime is 4043120240039. The next prime is 4043120240057. The reversal of 4043120240040 is 400420213404.

It is a happy number.

It is a super-2 number, since 2×4043120240040² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1564327 + ... + 3245513.

It is an arithmetic number, because the mean of its divisors is an integer number (73667556675).

Almost surely, 2^{4043120240040} is an apocalyptic number.

4043120240040 is a gapful number since it is divisible by the number (40) 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 4043120240040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7072085440800).

4043120240040 is an abundant number, since it is smaller than the sum of its proper divisors (10101050641560).

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

4043120240040 is a wasteful number, since it uses less digits than its factorization.

4043120240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681624 (or 1681613 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 4043120240040 its reverse (400420213404), we get a palindrome (4443540453444).

The spelling of 4043120240040 in words is "four trillion, forty-three billion, one hundred twenty million, two hundred forty thousand, forty".