7225413220 has 24 divisors (see below), whose sum is σ = 15696588600. Its totient is φ = 2790504192.

The previous prime is 7225413211. The next prime is 7225413227. The reversal of 7225413220 is 223145227.

It can be written as a sum of positive squares in 4 ways, for example, as 425101924 + 6800311296 = 20618^2 + 82464^2 .

It is not an unprimeable number, because it can be changed into a prime (7225413227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6228225 + ... + 6229384.

It is an arithmetic number, because the mean of its divisors is an integer number (654024525).

Almost surely, 2^7225413220 is an apocalyptic number.

It is an amenable number.

7225413220 is an abundant number, since it is smaller than the sum of its proper divisors (8471175380).

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

7225413220 is a wasteful number, since it uses less digits than its factorization.

7225413220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457647 (or 12457645 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7225413220 is about 85002.4306711285. The cubic root of 7225413220 is about 1933.2479713269.

Adding to 7225413220 its reverse (223145227), we get a palindrome (7448558447).

The spelling of 7225413220 in words is "seven billion, two hundred twenty-five million, four hundred thirteen thousand, two hundred twenty".