504139944 has 256 divisors, whose sum is σ = 1700352000. Its totient is φ = 120637440.

The previous prime is 504139927. The next prime is 504139997. The reversal of 504139944 is 449931405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1232412 + ... + 1232820.

It is an arithmetic number, because the mean of its divisors is an integer number (6642000).

Almost surely, 2^504139944 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 504139944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850176000).

504139944 is an abundant number, since it is smaller than the sum of its proper divisors (1196212056).

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

504139944 is a wasteful number, since it uses less digits than its factorization.

504139944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 504139944 is about 22453.0609049190. The cubic root of 504139944 is about 795.8850915331.

The spelling of 504139944 in words is "five hundred four million, one hundred thirty-nine thousand, nine hundred forty-four".