720528252 has 12 divisors (see below), whose sum is σ = 1681232616. Its totient is φ = 240176080.

The previous prime is 720528217. The next prime is 720528271. The reversal of 720528252 is 252825027.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 30021999 + ... + 30022022.

It is an arithmetic number, because the mean of its divisors is an integer number (140102718).

Almost surely, 2^720528252 is an apocalyptic number.

It is an amenable number.

720528252 is an abundant number, since it is smaller than the sum of its proper divisors (960704364).

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

720528252 is a wasteful number, since it uses less digits than its factorization.

720528252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60044028 (or 60044026 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 720528252 is about 26842.6573200196. The cubic root of 720528252 is about 896.5000911914.

The spelling of 720528252 in words is "seven hundred twenty million, five hundred twenty-eight thousand, two hundred fifty-two".