520276728 has 16 divisors (see below), whose sum is σ = 1300691880. Its totient is φ = 173425568.

The previous prime is 520276727. The next prime is 520276741. The reversal of 520276728 is 827672025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520276727) 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, 10839075 + ... + 10839122.

Almost surely, 2^520276728 is an apocalyptic number.

It is an amenable number.

520276728 is an abundant number, since it is smaller than the sum of its proper divisors (780415152).

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

520276728 is a wasteful number, since it uses less digits than its factorization.

520276728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21678206 (or 21678202 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 520276728 is about 22809.5753577308. The cubic root of 520276728 is about 804.2877735234.

The spelling of 520276728 in words is "five hundred twenty million, two hundred seventy-six thousand, seven hundred twenty-eight".