504691944 has 64 divisors (see below), whose sum is σ = 1331510400. Its totient is φ = 159092736.

The previous prime is 504691933. The next prime is 504691961. The reversal of 504691944 is 449196405.

It is a junction number, because it is equal to n+sod(n) for n = 504691896 and 504691905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43992 + ... + 54264.

It is an arithmetic number, because the mean of its divisors is an integer number (20804850).

Almost surely, 2^504691944 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 504691944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665755200).

504691944 is an abundant number, since it is smaller than the sum of its proper divisors (826818456).

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

504691944 is a wasteful number, since it uses less digits than its factorization.

504691944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394 (or 10390 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 504691944 is about 22465.3498526063. The cubic root of 504691944 is about 796.1754661456.

The spelling of 504691944 in words is "five hundred four million, six hundred ninety-one thousand, nine hundred forty-four".