520045330 has 24 divisors (see below), whose sum is σ = 1088912268. Its totient is φ = 178301088.

The previous prime is 520045327. The next prime is 520045343. The reversal of 520045330 is 33540025.

It can be written as a sum of positive squares in 2 ways, for example, as 494573121 + 25472209 = 22239^2 + 5047^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530169 + ... + 531148.

Almost surely, 2^520045330 is an apocalyptic number.

520045330 is an abundant number, since it is smaller than the sum of its proper divisors (568866938).

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

520045330 is a wasteful number, since it uses less digits than its factorization.

520045330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061338 (or 1061331 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 520045330 is about 22804.5024063232. The cubic root of 520045330 is about 804.1685176413.

Adding to 520045330 its reverse (33540025), we get a palindrome (553585355).

The spelling of 520045330 in words is "five hundred twenty million, forty-five thousand, three hundred thirty".