520444412 has 12 divisors (see below), whose sum is σ = 911241240. Its totient is φ = 260089776.

The previous prime is 520444403. The next prime is 520444423. The reversal of 520444412 is 214444025.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 23987 + ... + 40202.

It is an arithmetic number, because the mean of its divisors is an integer number (75936770).

Almost surely, 2^520444412 is an apocalyptic number.

It is an amenable number.

520444412 is a deficient number, since it is larger than the sum of its proper divisors (390796828).

520444412 is a wasteful number, since it uses less digits than its factorization.

520444412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66220 (or 66218 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 520444412 is about 22813.2507986039. The cubic root of 520444412 is about 804.3741709458.

Adding to 520444412 its reverse (214444025), we get a palindrome (734888437).

The spelling of 520444412 in words is "five hundred twenty million, four hundred forty-four thousand, four hundred twelve".