726307660 has 96 divisors (see below), whose sum is σ = 1763802432. Its totient is φ = 248832000.

The previous prime is 726307651. The next prime is 726307691. The reversal of 726307660 is 66703627.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321535 + ... + 323785.

It is an arithmetic number, because the mean of its divisors is an integer number (18372942).

Almost surely, 2^726307660 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 726307660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881901216).

726307660 is an abundant number, since it is smaller than the sum of its proper divisors (1037494772).

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

726307660 is a wasteful number, since it uses less digits than its factorization.

726307660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 726307660 is about 26950.0957326686. The cubic root of 726307660 is about 898.8906743770.

The spelling of 726307660 in words is "seven hundred twenty-six million, three hundred seven thousand, six hundred sixty".