7440381242840 has 384 divisors, whose sum is σ = 21504442075200. Its totient is φ = 2295094394880.

The previous prime is 7440381242821. The next prime is 7440381242843. The reversal of 7440381242840 is 482421830447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440381242843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1315249292 + ... + 1315254948.

Almost surely, 2^{7440381242840} is an apocalyptic number.

7440381242840 is a gapful number since it is divisible by the number (70) 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 7440381242840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10752221037600).

7440381242840 is an abundant number, since it is smaller than the sum of its proper divisors (14064060832360).

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

7440381242840 is a wasteful number, since it uses less digits than its factorization.

7440381242840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6984 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 47.

The spelling of 7440381242840 in words is "seven trillion, four hundred forty billion, three hundred eighty-one million, two hundred forty-two thousand, eight hundred forty".