720540332 has 24 divisors (see below), whose sum is σ = 1284803520. Its totient is φ = 353477520.

The previous prime is 720540323. The next prime is 720540377. The reversal of 720540332 is 233045027.

720540332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132083 + ... + 137429.

It is an arithmetic number, because the mean of its divisors is an integer number (53533480).

Almost surely, 2^720540332 is an apocalyptic number.

It is an amenable number.

720540332 is a deficient number, since it is larger than the sum of its proper divisors (564263188).

720540332 is a wasteful number, since it uses less digits than its factorization.

720540332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981 (or 5979 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 720540332 is about 26842.8823340565. The cubic root of 720540332 is about 896.5051012474.

Adding to 720540332 its reverse (233045027), we get a palindrome (953585359).

The spelling of 720540332 in words is "seven hundred twenty million, five hundred forty thousand, three hundred thirty-two".