7224174540 has 240 divisors, whose sum is σ = 25192490400. Its totient is φ = 1718046720.

The previous prime is 7224174521. The next prime is 7224174541. The reversal of 7224174540 is 454714227.

7224174540 is a `hidden beast` number, since 7 + 2 + 2 + 41 + 74 + 540 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 7224174495 and 7224174504.

It is not an unprimeable number, because it can be changed into a prime (7224174541) 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 79 ways as a sum of consecutive naturals, for example, 940636 + ... + 948284.

It is an arithmetic number, because the mean of its divisors is an integer number (104968710).

Almost surely, 2^7224174540 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 7224174540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12596245200).

7224174540 is an abundant number, since it is smaller than the sum of its proper divisors (17968315860).

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

7224174540 is a wasteful number, since it uses less digits than its factorization.

7224174540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734 (or 7723 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 7224174540 is about 84995.1442142432. The cubic root of 7224174540 is about 1933.1374903352.

Adding to 7224174540 its reverse (454714227), we get a palindrome (7678888767).

The spelling of 7224174540 in words is "seven billion, two hundred twenty-four million, one hundred seventy-four thousand, five hundred forty".