720567628 has 48 divisors (see below), whose sum is σ = 1453132800. Its totient is φ = 309199680.

The previous prime is 720567619. The next prime is 720567643. The reversal of 720567628 is 826765027.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263653 + ... + 266371.

It is an arithmetic number, because the mean of its divisors is an integer number (30273600).

Almost surely, 2^720567628 is an apocalyptic number.

It is an amenable number.

720567628 is an abundant number, since it is smaller than the sum of its proper divisors (732565172).

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

720567628 is a wasteful number, since it uses less digits than its factorization.

720567628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 720567628 is about 26843.3907694240. The cubic root of 720567628 is about 896.5164217769.

The spelling of 720567628 in words is "seven hundred twenty million, five hundred sixty-seven thousand, six hundred twenty-eight".