504304020 has 72 divisors (see below), whose sum is σ = 1668794400. Its totient is φ = 122255040.

The previous prime is 504304013. The next prime is 504304033. The reversal of 504304020 is 20403405.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 504303984 and 504304002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125370 + ... + 129329.

It is an arithmetic number, because the mean of its divisors is an integer number (23177700).

Almost surely, 2^504304020 is an apocalyptic number.

It is an amenable number.

504304020 is an abundant number, since it is smaller than the sum of its proper divisors (1164490380).

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

504304020 is a wasteful number, since it uses less digits than its factorization.

504304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254725 (or 254720 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 504304020 is about 22456.7143634148. The cubic root of 504304020 is about 795.9714243591.

Adding to 504304020 its reverse (20403405), we get a palindrome (524707425).

The spelling of 504304020 in words is "five hundred four million, three hundred four thousand, twenty".