504420020 has 48 divisors (see below), whose sum is σ = 1144257408. Its totient is φ = 185677440.

The previous prime is 504420013. The next prime is 504420023. The reversal of 504420020 is 20024405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504420023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87425 + ... + 93015.

It is an arithmetic number, because the mean of its divisors is an integer number (23838696).

Almost surely, 2^504420020 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 504420020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572128704).

504420020 is an abundant number, since it is smaller than the sum of its proper divisors (639837388).

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

504420020 is a wasteful number, since it uses less digits than its factorization.

504420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960 (or 5958 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 504420020 is about 22459.2969613922. The cubic root of 504420020 is about 796.0324494570.

Adding to 504420020 its reverse (20024405), we get a palindrome (524444425).

The spelling of 504420020 in words is "five hundred four million, four hundred twenty thousand, twenty".