720567630 has 32 divisors (see below), whose sum is σ = 1921514400. Its totient is φ = 192151296.

The previous prime is 720567619. The next prime is 720567643. The reversal of 720567630 is 36765027.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1334115 + ... + 1334654.

It is an arithmetic number, because the mean of its divisors is an integer number (60047325).

Almost surely, 2^720567630 is an apocalyptic number.

720567630 is an abundant number, since it is smaller than the sum of its proper divisors (1200946770).

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

720567630 is a wasteful number, since it uses less digits than its factorization.

720567630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668785 (or 2668779 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 720567630 is about 26843.3908066772. The cubic root of 720567630 is about 896.5164226063.

The spelling of 720567630 in words is "seven hundred twenty million, five hundred sixty-seven thousand, six hundred thirty".