504217640 has 32 divisors (see below), whose sum is σ = 1146194280. Its totient is φ = 199606272.

The previous prime is 504217619. The next prime is 504217667. The reversal of 504217640 is 46712405.

It can be written as a sum of positive squares in 4 ways, for example, as 405055876 + 99161764 = 20126^2 + 9958^2 .

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, 61097 + ... + 68856.

Almost surely, 2^504217640 is an apocalyptic number.

It is an amenable number.

504217640 is an abundant number, since it is smaller than the sum of its proper divisors (641976640).

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

504217640 is a wasteful number, since it uses less digits than its factorization.

504217640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130061 (or 130057 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 504217640 is about 22454.7910255250. The cubic root of 504217640 is about 795.9259756251.

The spelling of 504217640 in words is "five hundred four million, two hundred seventeen thousand, six hundred forty".