530721480 has 128 divisors (see below), whose sum is σ = 1641784320. Its totient is φ = 137168640.

The previous prime is 530721473. The next prime is 530721497. The reversal of 530721480 is 84127035.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 840765 + ... + 841395.

It is an arithmetic number, because the mean of its divisors is an integer number (12826440).

Almost surely, 2^530721480 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 530721480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820892160).

530721480 is an abundant number, since it is smaller than the sum of its proper divisors (1111062840).

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

530721480 is a wasteful number, since it uses less digits than its factorization.

530721480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 530721480 is about 23037.3930816835. The cubic root of 530721480 is about 809.6342808694.

The spelling of 530721480 in words is "five hundred thirty million, seven hundred twenty-one thousand, four hundred eighty".