520022724 has 48 divisors (see below), whose sum is σ = 1383596928. Its totient is φ = 150594048.

The previous prime is 520022689. The next prime is 520022731. The reversal of 520022724 is 427220025.

It is a junction number, because it is equal to n+sod(n) for n = 520022694 and 520022703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95392 + ... + 100695.

It is an arithmetic number, because the mean of its divisors is an integer number (28824936).

Almost surely, 2^520022724 is an apocalyptic number.

It is an amenable number.

520022724 is an abundant number, since it is smaller than the sum of its proper divisors (863574204).

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

520022724 is a wasteful number, since it uses less digits than its factorization.

520022724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196124 (or 196122 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 520022724 is about 22804.0067532002. The cubic root of 520022724 is about 804.1568652616.

Adding to 520022724 its reverse (427220025), we get a palindrome (947242749).

The spelling of 520022724 in words is "five hundred twenty million, twenty-two thousand, seven hundred twenty-four".