720345232 has 20 divisors (see below), whose sum is σ = 1396267776. Its totient is φ = 360018080.

The previous prime is 720345221. The next prime is 720345247. The reversal of 720345232 is 232543027.

720345232 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 720345232.

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, 35073 + ... + 51679.

Almost surely, 2^720345232 is an apocalyptic number.

It is an amenable number.

720345232 is a deficient number, since it is larger than the sum of its proper divisors (675922544).

720345232 is a wasteful number, since it uses less digits than its factorization.

720345232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19326 (or 19320 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 720345232 is about 26839.2479775421. The cubic root of 720345232 is about 896.4241786737.

Adding to 720345232 its reverse (232543027), we get a palindrome (952888259).

The spelling of 720345232 in words is "seven hundred twenty million, three hundred forty-five thousand, two hundred thirty-two".