7208231040 has 512 divisors, whose sum is σ = 26658720000. Its totient is φ = 1839366144.

The previous prime is 7208230987. The next prime is 7208231059. The reversal of 7208231040 is 401328027.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 7208230995 and 7208231013.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 66130506 + ... + 66130614.

Almost surely, 2^7208231040 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 7208231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13329360000).

7208231040 is an abundant number, since it is smaller than the sum of its proper divisors (19450488960).

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

7208231040 is a wasteful number, since it uses less digits than its factorization.

7208231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 7208231040 is about 84901.3017568046. The cubic root of 7208231040 is about 1931.7143206313.

Adding to 7208231040 its reverse (401328027), we get a palindrome (7609559067).

The spelling of 7208231040 in words is "seven billion, two hundred eight million, two hundred thirty-one thousand, forty".