520433538 has 16 divisors (see below), whose sum is σ = 1063013760. Its totient is φ = 169786736.

The previous prime is 520433533. The next prime is 520433561. The reversal of 520433538 is 835334025.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520433499 and 520433508.

It is not an unprimeable number, because it can be changed into a prime (520433531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922473 + ... + 923036.

It is an arithmetic number, because the mean of its divisors is an integer number (66438360).

Almost surely, 2^520433538 is an apocalyptic number.

520433538 is an abundant number, since it is smaller than the sum of its proper divisors (542580222).

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

520433538 is a wasteful number, since it uses less digits than its factorization.

520433538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845561.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 520433538 is about 22813.0124709561. The cubic root of 520433538 is about 804.3685687940.

The spelling of 520433538 in words is "five hundred twenty million, four hundred thirty-three thousand, five hundred thirty-eight".