720488736 has 288 divisors, whose sum is σ = 2404261440. Its totient is φ = 208051200.

The previous prime is 720488719. The next prime is 720488771. The reversal of 720488736 is 637884027.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 720488691 and 720488700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16755531 + ... + 16755573.

It is an arithmetic number, because the mean of its divisors is an integer number (8348130).

Almost surely, 2^720488736 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 720488736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202130720).

720488736 is an abundant number, since it is smaller than the sum of its proper divisors (1683772704).

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

720488736 is a wasteful number, since it uses less digits than its factorization.

720488736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 720488736 is about 26841.9212427129. The cubic root of 720488736 is about 896.4837019450.

The spelling of 720488736 in words is "seven hundred twenty million, four hundred eighty-eight thousand, seven hundred thirty-six".