720668430 has 48 divisors (see below), whose sum is σ = 1955210400. Its totient is φ = 183822144.

The previous prime is 720668419. The next prime is 720668467. The reversal of 720668430 is 34866027.

720668430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172005 + ... + 176144.

It is an arithmetic number, because the mean of its divisors is an integer number (40733550).

Almost surely, 2^720668430 is an apocalyptic number.

720668430 is an abundant number, since it is smaller than the sum of its proper divisors (1234541970).

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

720668430 is a wasteful number, since it uses less digits than its factorization.

720668430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348185 (or 348182 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 720668430 is about 26845.2682981564. The cubic root of 720668430 is about 896.5582251326.

The spelling of 720668430 in words is "seven hundred twenty million, six hundred sixty-eight thousand, four hundred thirty".