520704232 has 24 divisors (see below), whose sum is σ = 981088290. Its totient is φ = 259086560.

The previous prime is 520704229. The next prime is 520704259. The reversal of 520704232 is 232407025.

It can be written as a sum of positive squares in only one way, i.e., 420824196 + 99880036 = 20514^2 + 9994^2 .

It is a super-2 number, since 2×520704232² = 542265794445419648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520704197 and 520704206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552882 + ... + 553822.

Almost surely, 2^520704232 is an apocalyptic number.

It is an amenable number.

520704232 is a deficient number, since it is larger than the sum of its proper divisors (460384058).

520704232 is an equidigital number, since it uses as much as digits as its factorization.

520704232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 520704232 is about 22818.9445855850. The cubic root of 520704232 is about 804.5080038289.

The spelling of 520704232 in words is "five hundred twenty million, seven hundred four thousand, two hundred thirty-two".