724243560 has 128 divisors (see below), whose sum is σ = 2216332800. Its totient is φ = 189296640.

The previous prime is 724243549. The next prime is 724243561. The reversal of 724243560 is 65342427.

It is not an unprimeable number, because it can be changed into a prime (724243561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2284522 + ... + 2284838.

It is an arithmetic number, because the mean of its divisors is an integer number (17315100).

Almost surely, 2^724243560 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 724243560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108166400).

724243560 is an abundant number, since it is smaller than the sum of its proper divisors (1492089240).

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

724243560 is a wasteful number, since it uses less digits than its factorization.

724243560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 724243560 is about 26911.7736316282. The cubic root of 724243560 is about 898.0383447333.

Adding to 724243560 its reverse (65342427), we get a palindrome (789585987).

The spelling of 724243560 in words is "seven hundred twenty-four million, two hundred forty-three thousand, five hundred sixty".