726528668 has 12 divisors (see below), whose sum is σ = 1271738160. Its totient is φ = 363174912.

The previous prime is 726528661. The next prime is 726528683. The reversal of 726528668 is 866825627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726528661) 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 3 ways as a sum of consecutive naturals, for example, 2021 + ... + 38172.

It is an arithmetic number, because the mean of its divisors is an integer number (105978180).

Almost surely, 2^726528668 is an apocalyptic number.

It is an amenable number.

726528668 is a deficient number, since it is larger than the sum of its proper divisors (545209492).

726528668 is a wasteful number, since it uses less digits than its factorization.

726528668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44716 (or 44714 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 726528668 is about 26954.1957401812. The cubic root of 726528668 is about 898.9818395467.

The spelling of 726528668 in words is "seven hundred twenty-six million, five hundred twenty-eight thousand, six hundred sixty-eight".