504424222352540 has 144 divisors (see below), whose sum is σ = 1237941300351168. Its totient is φ = 169126546661376.

The previous prime is 504424222352417. The next prime is 504424222352621. The reversal of 504424222352540 is 45253222424405.

It is a junction number, because it is equal to n+sod(n) for n = 504424222352491 and 504424222352500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375699302 + ... + 377039538.

It is an arithmetic number, because the mean of its divisors is an integer number (8596814585772).

Almost surely, 2^{504424222352540} 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 504424222352540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618970650175584).

504424222352540 is an abundant number, since it is smaller than the sum of its proper divisors (733517077998628).

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

504424222352540 is a wasteful number, since it uses less digits than its factorization.

504424222352540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341564 (or 1341515 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 44.

Adding to 504424222352540 its reverse (45253222424405), we get a palindrome (549677444776945).

The spelling of 504424222352540 in words is "five hundred four trillion, four hundred twenty-four billion, two hundred twenty-two million, three hundred fifty-two thousand, five hundred forty".