520299936 has 144 divisors (see below), whose sum is σ = 1652755104. Its totient is φ = 160061184.

The previous prime is 520299919. The next prime is 520299947. The reversal of 520299936 is 639992025.

520299936 is a `hidden beast` number, since 520 + 2 + 9 + 99 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 520299891 and 520299900.

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, 98515 + ... + 103661.

It is an arithmetic number, because the mean of its divisors is an integer number (11477466).

Almost surely, 2^520299936 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 520299936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826377552).

520299936 is an abundant number, since it is smaller than the sum of its proper divisors (1132455168).

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

520299936 is a wasteful number, since it uses less digits than its factorization.

520299936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185 (or 5165 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 520299936 is about 22810.0840857722. The cubic root of 520299936 is about 804.2997323088.

The spelling of 520299936 in words is "five hundred twenty million, two hundred ninety-nine thousand, nine hundred thirty-six".