720350568 has 144 divisors (see below), whose sum is σ = 2301382980. Its totient is φ = 202922496.

The previous prime is 720350563. The next prime is 720350569. The reversal of 720350568 is 865053027.

It can be written as a sum of positive squares in 2 ways, for example, as 702356004 + 17994564 = 26502^2 + 4242^2 .

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

It is not an unprimeable number, because it can be changed into a prime (720350563) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 256146 + ... + 258942.

Almost surely, 2^720350568 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 720350568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150691490).

720350568 is an abundant number, since it is smaller than the sum of its proper divisors (1581032412).

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

720350568 is a wasteful number, since it uses less digits than its factorization.

720350568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 720350568 is about 26839.3473840181. The cubic root of 720350568 is about 896.4263921067.

The spelling of 720350568 in words is "seven hundred twenty million, three hundred fifty thousand, five hundred sixty-eight".