7224031344420 has 384 divisors, whose sum is σ = 26563895930880. Its totient is φ = 1609931151360.

The previous prime is 7224031344391. The next prime is 7224031344427. The reversal of 7224031344420 is 244431304227.

7224031344420 is a `hidden beast` number, since 7 + 2 + 240 + 31 + 344 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (7224031344427) 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 127 ways as a sum of consecutive naturals, for example, 3510289 + ... + 5173991.

It is an arithmetic number, because the mean of its divisors is an integer number (69176812320).

Almost surely, 2^{7224031344420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7224031344420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13281947965440).

7224031344420 is an abundant number, since it is smaller than the sum of its proper divisors (19339864586460).

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

7224031344420 is a wasteful number, since it uses less digits than its factorization.

7224031344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663792 (or 1663784 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

Adding to 7224031344420 its reverse (244431304227), we get a palindrome (7468462648647).

The spelling of 7224031344420 in words is "seven trillion, two hundred twenty-four billion, thirty-one million, three hundred forty-four thousand, four hundred twenty".