520399282 has 8 divisors (see below), whose sum is σ = 840645036. Its totient is φ = 240184272.

The previous prime is 520399259. The next prime is 520399283. The reversal of 520399282 is 282993025.

It can be written as a sum of positive squares in 2 ways, for example, as 514881481 + 5517801 = 22691^2 + 2349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×520399282² = 541630825412231048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520399283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10007653 + ... + 10007704.

Almost surely, 2^520399282 is an apocalyptic number.

520399282 is a deficient number, since it is larger than the sum of its proper divisors (320245754).

520399282 is a wasteful number, since it uses less digits than its factorization.

520399282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015372.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 520399282 is about 22812.2616590289. The cubic root of 520399282 is about 804.3509200120.

The spelling of 520399282 in words is "five hundred twenty million, three hundred ninety-nine thousand, two hundred eighty-two".