530784720 has 120 divisors (see below), whose sum is σ = 1809321696. Its totient is φ = 139417344.

The previous prime is 530784719. The next prime is 530784757. The reversal of 530784720 is 27487035.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42739 + ... + 53741.

Almost surely, 2^530784720 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 530784720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904660848).

530784720 is an abundant number, since it is smaller than the sum of its proper divisors (1278536976).

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

530784720 is a wasteful number, since it uses less digits than its factorization.

530784720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089 (or 11080 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 530784720 is about 23038.7655919322. The cubic root of 530784720 is about 809.6664378735. Note that the first 3 decimals are identical.

The spelling of 530784720 in words is "five hundred thirty million, seven hundred eighty-four thousand, seven hundred twenty".