520604940 has 96 divisors (see below), whose sum is σ = 1624734720. Its totient is φ = 123780096.

The previous prime is 520604939. The next prime is 520604963. The reversal of 520604940 is 49406025.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 520604898 and 520604907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5949 + ... + 32811.

It is an arithmetic number, because the mean of its divisors is an integer number (16924320).

Almost surely, 2^520604940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520604940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (812367360).

520604940 is an abundant number, since it is smaller than the sum of its proper divisors (1104129780).

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

520604940 is a wasteful number, since it uses less digits than its factorization.

520604940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26911 (or 26909 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 520604940 is about 22816.7688334698. The cubic root of 520604940 is about 804.4568639291.

The spelling of 520604940 in words is "five hundred twenty million, six hundred four thousand, nine hundred forty".