7327208736 has 144 divisors (see below), whose sum is σ = 21244499640. Its totient is φ = 2394869760.

The previous prime is 7327208731. The next prime is 7327208737. The reversal of 7327208736 is 6378027237.

It can be written as a sum of positive squares in 4 ways, for example, as 5262051600 + 2065157136 = 72540^2 + 45444^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7327208691 and 7327208700.

It is not an unprimeable number, because it can be changed into a prime (7327208731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9995826 + ... + 9996558.

Almost surely, 2^7327208736 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 7327208736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10622249820).

7327208736 is an abundant number, since it is smaller than the sum of its proper divisors (13917290904).

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

7327208736 is a wasteful number, since it uses less digits than its factorization.

7327208736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The square root of 7327208736 is about 85599.1164440381. The cubic root of 7327208736 is about 1942.2845457035.

The spelling of 7327208736 in words is "seven billion, three hundred twenty-seven million, two hundred eight thousand, seven hundred thirty-six".