520680732 has 96 divisors (see below), whose sum is σ = 1476679680. Its totient is φ = 140609280.

The previous prime is 520680697. The next prime is 520680733. The reversal of 520680732 is 237086025.

It is a super-2 number, since 2×520680732² = 542216849352111648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 520680693 and 520680702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520680733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44533 + ... + 54995.

It is an arithmetic number, because the mean of its divisors is an integer number (15382080).

Almost surely, 2^520680732 is an apocalyptic number.

520680732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520680732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738339840).

520680732 is an abundant number, since it is smaller than the sum of its proper divisors (955998948).

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

520680732 is a wasteful number, since it uses less digits than its factorization.

520680732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523 (or 10521 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 520680732 is about 22818.4296567489. The cubic root of 520680732 is about 804.4959008465.

The spelling of 520680732 in words is "five hundred twenty million, six hundred eighty thousand, seven hundred thirty-two".