520726020 has 48 divisors (see below), whose sum is σ = 1459610880. Its totient is φ = 138710016.

The previous prime is 520726013. The next prime is 520726033. The reversal of 520726020 is 20627025.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58164 + ... + 66516.

It is an arithmetic number, because the mean of its divisors is an integer number (30408560).

Almost surely, 2^520726020 is an apocalyptic number.

It is an amenable number.

520726020 is an abundant number, since it is smaller than the sum of its proper divisors (938884860).

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

520726020 is a wasteful number, since it uses less digits than its factorization.

520726020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9404 (or 9402 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 520726020 is about 22819.4219909269. The cubic root of 520726020 is about 804.5192247708.

The spelling of 520726020 in words is "five hundred twenty million, seven hundred twenty-six thousand, twenty".