720706132 has 12 divisors (see below), whose sum is σ = 1264165056. Its totient is φ = 359516120.

The previous prime is 720706121. The next prime is 720706169. The reversal of 720706132 is 231607027.

720706132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 720706132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207298 + ... + 210745.

It is an arithmetic number, because the mean of its divisors is an integer number (105347088).

Almost surely, 2^720706132 is an apocalyptic number.

It is an amenable number.

720706132 is a deficient number, since it is larger than the sum of its proper divisors (543458924).

720706132 is a wasteful number, since it uses less digits than its factorization.

720706132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418478 (or 418476 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 720706132 is about 26845.9704983821. The cubic root of 720706132 is about 896.5738594370.

The spelling of 720706132 in words is "seven hundred twenty million, seven hundred six thousand, one hundred thirty-two".