504449680 has 40 divisors (see below), whose sum is σ = 1340396352. Its totient is φ = 172953984.

The previous prime is 504449669. The next prime is 504449779. The reversal of 504449680 is 86944405.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 7 ways as a sum of consecutive naturals, for example, 449842 + ... + 450961.

Almost surely, 2^504449680 is an apocalyptic number.

It is an amenable number.

504449680 is an abundant number, since it is smaller than the sum of its proper divisors (835946672).

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

504449680 is a wasteful number, since it uses less digits than its factorization.

504449680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900823 (or 900817 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 504449680 is about 22459.9572573057. The cubic root of 504449680 is about 796.0480514413.

The spelling of 504449680 in words is "five hundred four million, four hundred forty-nine thousand, six hundred eighty".