520842132 has 18 divisors (see below), whose sum is σ = 1316573258. Its totient is φ = 173614032.

The previous prime is 520842131. The next prime is 520842167. The reversal of 520842132 is 231248025.

520842132 is a `hidden beast` number, since 5 + 208 + 421 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 496576656 + 24265476 = 22284^2 + 4926^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 520842096 and 520842105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520842131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7233883 + ... + 7233954.

Almost surely, 2^520842132 is an apocalyptic number.

It is an amenable number.

520842132 is an abundant number, since it is smaller than the sum of its proper divisors (795731126).

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

520842132 is a wasteful number, since it uses less digits than its factorization.

520842132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14467847 (or 14467842 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 520842132 is about 22821.9659976962. The cubic root of 520842132 is about 804.5790178228.

The spelling of 520842132 in words is "five hundred twenty million, eight hundred forty-two thousand, one hundred thirty-two".