720641152 has 288 divisors, whose sum is σ = 1999085760. Its totient is φ = 252764160.

The previous prime is 720641123. The next prime is 720641179. The reversal of 720641152 is 251146027.

It is a super-3 number, since 3×720641152³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 720641152.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31332213 + ... + 31332235.

It is an arithmetic number, because the mean of its divisors is an integer number (6941270).

Almost surely, 2^720641152 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 720641152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (999542880).

720641152 is an abundant number, since it is smaller than the sum of its proper divisors (1278444608).

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

720641152 is a wasteful number, since it uses less digits than its factorization.

720641152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 720641152 is about 26844.7602336098. The cubic root of 720641152 is about 896.5469131233.

Adding to 720641152 its reverse (251146027), we get a palindrome (971787179).

The spelling of 720641152 in words is "seven hundred twenty million, six hundred forty-one thousand, one hundred fifty-two".