520603434 has 24 divisors (see below), whose sum is σ = 1214741892. Its totient is φ = 160185600.

The previous prime is 520603417. The next prime is 520603469. The reversal of 520603434 is 434306025.

520603434 is a `hidden beast` number, since 5 + 20 + 603 + 4 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 519156225 + 1447209 = 22785^2 + 1203^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520603398 and 520603407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1112167 + ... + 1112634.

Almost surely, 2^520603434 is an apocalyptic number.

520603434 is an abundant number, since it is smaller than the sum of its proper divisors (694138458).

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

520603434 is a wasteful number, since it uses less digits than its factorization.

520603434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224822 (or 2224819 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 520603434 is about 22816.7358314024. The cubic root of 520603434 is about 804.4560882205.

Adding to 520603434 its reverse (434306025), we get a palindrome (954909459).

The spelling of 520603434 in words is "five hundred twenty million, six hundred three thousand, four hundred thirty-four".