720434160 has 240 divisors, whose sum is σ = 2600994240. Its totient is φ = 178053120.

The previous prime is 720434149. The next prime is 720434161. The reversal of 720434160 is 61434027.

720434160 is a `hidden beast` number, since 72 + 0 + 434 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720434161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 868626 + ... + 869454.

It is an arithmetic number, because the mean of its divisors is an integer number (10837476).

Almost surely, 2^720434160 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 720434160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300497120).

720434160 is an abundant number, since it is smaller than the sum of its proper divisors (1880560080).

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

720434160 is a wasteful number, since it uses less digits than its factorization.

720434160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 720434160 is about 26840.9046047260. The cubic root of 720434160 is about 896.4610655837.

Adding to 720434160 its reverse (61434027), we get a palindrome (781868187).

The spelling of 720434160 in words is "seven hundred twenty million, four hundred thirty-four thousand, one hundred sixty".