720072256 has 14 divisors (see below), whose sum is σ = 1428893510. Its totient is φ = 360036096.

The previous prime is 720072253. The next prime is 720072307. The reversal of 720072256 is 652270027.

720072256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 717382656 + 2689600 = 26784^2 + 1640^2 .

It is not an unprimeable number, because it can be changed into a prime (720072253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625501 + ... + 5625628.

Almost surely, 2^720072256 is an apocalyptic number.

It is an amenable number.

720072256 is a deficient number, since it is larger than the sum of its proper divisors (708821254).

720072256 is a wasteful number, since it uses less digits than its factorization.

720072256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251141 (or 11251131 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 720072256 is about 26834.1621072841. The cubic root of 720072256 is about 896.3109305661.

The spelling of 720072256 in words is "seven hundred twenty million, seventy-two thousand, two hundred fifty-six".