520224768 has 270 divisors, whose sum is σ = 1808000271. Its totient is φ = 148635648.

The previous prime is 520224721. The next prime is 520224779. The reversal of 520224768 is 867422025.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 260112384 + 260112384 = 16128^2 + 16128^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=16128.

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

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 74317821 + ... + 74317827.

Almost surely, 2^520224768 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 520224768

520224768 is an abundant number, since it is smaller than the sum of its proper divisors (1287775503).

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

520224768 is an frugal number, since it uses more digits than its factorization.

520224768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 520224768 is about 22808.4363339533. The cubic root of 520224768 is about 804.2609979110.

The spelling of 520224768 in words is "five hundred twenty million, two hundred twenty-four thousand, seven hundred sixty-eight".