520353928 has 16 divisors (see below), whose sum is σ = 989029980. Its totient is φ = 256612608.

The previous prime is 520353917. The next prime is 520353929. The reversal of 520353928 is 829353025.

It can be written as a sum of positive squares in 2 ways, for example, as 517926564 + 2427364 = 22758^2 + 1558^2 .

It is not an unprimeable number, because it can be changed into a prime (520353929) 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, 444925 + ... + 446092.

Almost surely, 2^520353928 is an apocalyptic number.

It is an amenable number.

520353928 is a deficient number, since it is larger than the sum of its proper divisors (468676052).

520353928 is a wasteful number, since it uses less digits than its factorization.

520353928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891096 (or 891092 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 520353928 is about 22811.2675667092. The cubic root of 520353928 is about 804.3275523193.

The spelling of 520353928 in words is "five hundred twenty million, three hundred fifty-three thousand, nine hundred twenty-eight".