720375560 has 64 divisors (see below), whose sum is σ = 1663865280. Its totient is φ = 280546560.

The previous prime is 720375547. The next prime is 720375569. The reversal of 720375560 is 65573027.

It is a self number, because there is not a number n which added to its sum of digits gives 720375560.

It is not an unprimeable number, because it can be changed into a prime (720375569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844094 + ... + 844946.

It is an arithmetic number, because the mean of its divisors is an integer number (25997895).

Almost surely, 2^720375560 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 720375560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831932640).

720375560 is an abundant number, since it is smaller than the sum of its proper divisors (943489720).

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

720375560 is a wasteful number, since it uses less digits than its factorization.

720375560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 720375560 is about 26839.8129650711. The cubic root of 720375560 is about 896.4367589245.

The spelling of 720375560 in words is "seven hundred twenty million, three hundred seventy-five thousand, five hundred sixty".