504563444 has 48 divisors (see below), whose sum is σ = 1115995776. Its totient is φ = 193881600.

The previous prime is 504563401. The next prime is 504563447. The reversal of 504563444 is 444365405.

It is a super-2 number, since 2×504563444² = 509168538042282272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504563447) 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, 11264 + ... + 33704.

It is an arithmetic number, because the mean of its divisors is an integer number (23249912).

Almost surely, 2^504563444 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 504563444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557997888).

504563444 is an abundant number, since it is smaller than the sum of its proper divisors (611432332).

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

504563444 is a wasteful number, since it uses less digits than its factorization.

504563444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22536 (or 22534 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The square root of 504563444 is about 22462.4897106265. The cubic root of 504563444 is about 796.1078887962.

The spelling of 504563444 in words is "five hundred four million, five hundred sixty-three thousand, four hundred forty-four".