520213396 has 12 divisors (see below), whose sum is σ = 963924948. Its totient is φ = 244806272.

The previous prime is 520213381. The next prime is 520213409. The reversal of 520213396 is 693312025.

It can be written as a sum of positive squares in 2 ways, for example, as 265364100 + 254849296 = 16290^2 + 15964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3825031 + ... + 3825166.

It is an arithmetic number, because the mean of its divisors is an integer number (80327079).

Almost surely, 2^520213396 is an apocalyptic number.

It is an amenable number.

520213396 is a deficient number, since it is larger than the sum of its proper divisors (443711552).

520213396 is a wasteful number, since it uses less digits than its factorization.

520213396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650218 (or 7650216 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 520213396 is about 22808.1870388683. The cubic root of 520213396 is about 804.2551375450.

The spelling of 520213396 in words is "five hundred twenty million, two hundred thirteen thousand, three hundred ninety-six".