520334040 has 32 divisors (see below), whose sum is σ = 1561002480. Its totient is φ = 138755712.

The previous prime is 520334021. The next prime is 520334047. The reversal of 520334040 is 40433025.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 520333998 and 520334016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520334047) 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, 2167939 + ... + 2168178.

Almost surely, 2^520334040 is an apocalyptic number.

It is an amenable number.

520334040 is an abundant number, since it is smaller than the sum of its proper divisors (1040668440).

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

520334040 is a wasteful number, since it uses less digits than its factorization.

520334040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336131 (or 4336127 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 520334040 is about 22810.8316376234. The cubic root of 520334040 is about 804.3173050182.

Adding to 520334040 its reverse (40433025), we get a palindrome (560767065).

The spelling of 520334040 in words is "five hundred twenty million, three hundred thirty-four thousand, forty".