7220438283480 has 128 divisors (see below), whose sum is σ = 21749402949120. Its totient is φ = 1917624028160.

The previous prime is 7220438283439. The next prime is 7220438283481. The reversal of 7220438283480 is 843828340227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220438283481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128515795 + ... + 128571965.

It is an arithmetic number, because the mean of its divisors is an integer number (169917210540).

Almost surely, 2^{7220438283480} 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 7220438283480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10874701474560).

7220438283480 is an abundant number, since it is smaller than the sum of its proper divisors (14528964665640).

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

7220438283480 is a wasteful number, since it uses less digits than its factorization.

7220438283480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60521 (or 60517 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 51.

The spelling of 7220438283480 in words is "seven trillion, two hundred twenty billion, four hundred thirty-eight million, two hundred eighty-three thousand, four hundred eighty".