720504576 has 108 divisors (see below), whose sum is σ = 2266325880. Its totient is φ = 218327040.

The previous prime is 720504563. The next prime is 720504607. The reversal of 720504576 is 675405027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 720504576.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11130 + ... + 39558.

Almost surely, 2^720504576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720504576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133162940).

720504576 is an abundant number, since it is smaller than the sum of its proper divisors (1545821304).

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

720504576 is a wasteful number, since it uses less digits than its factorization.

720504576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28462 (or 28445 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 720504576 is about 26842.2163019375. The cubic root of 720504576 is about 896.4902716511.

The spelling of 720504576 in words is "seven hundred twenty million, five hundred four thousand, five hundred seventy-six".