720767264 has 72 divisors (see below), whose sum is σ = 1663063920. Its totient is φ = 306585216.

The previous prime is 720767263. The next prime is 720767297. The reversal of 720767264 is 462767027.

It is not an unprimeable number, because it can be changed into a prime (720767263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216299 + ... + 219605.

It is an arithmetic number, because the mean of its divisors is an integer number (23098110).

Almost surely, 2^720767264 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 720767264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831531960).

720767264 is an abundant number, since it is smaller than the sum of its proper divisors (942296656).

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

720767264 is a wasteful number, since it uses less digits than its factorization.

720767264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 720767264 is about 26847.1090436196. The cubic root of 720767264 is about 896.5992085592.

The spelling of 720767264 in words is "seven hundred twenty million, seven hundred sixty-seven thousand, two hundred sixty-four".