720497760 has 48 divisors (see below), whose sum is σ = 2269569456. Its totient is φ = 192132608.

The previous prime is 720497749. The next prime is 720497761. The reversal of 720497760 is 67794027.

720497760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720497761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750039 + ... + 750998.

It is an arithmetic number, because the mean of its divisors is an integer number (47282697).

Almost surely, 2^720497760 is an apocalyptic number.

It is an amenable number.

720497760 is an abundant number, since it is smaller than the sum of its proper divisors (1549071696).

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

720497760 is a wasteful number, since it uses less digits than its factorization.

720497760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501055 (or 1501047 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 720497760 is about 26842.0893374566. The cubic root of 720497760 is about 896.4874446985.

The spelling of 720497760 in words is "seven hundred twenty million, four hundred ninety-seven thousand, seven hundred sixty".