726543660 has 48 divisors (see below), whose sum is σ = 2141395200. Its totient is φ = 183547584.

The previous prime is 726543659. The next prime is 726543667. The reversal of 726543660 is 66345627.

726543660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (726543667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317520 + ... + 319799.

It is an arithmetic number, because the mean of its divisors is an integer number (44612400).

Almost surely, 2^726543660 is an apocalyptic number.

It is an amenable number.

726543660 is an abundant number, since it is smaller than the sum of its proper divisors (1414851540).

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

726543660 is a wasteful number, since it uses less digits than its factorization.

726543660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637350 (or 637348 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 726543660 is about 26954.4738401624. The cubic root of 726543660 is about 898.9880230343.

The spelling of 726543660 in words is "seven hundred twenty-six million, five hundred forty-three thousand, six hundred sixty".