504888394 has 4 divisors (see below), whose sum is σ = 757332594. Its totient is φ = 252444196.

The previous prime is 504888359. The next prime is 504888401. The reversal of 504888394 is 493888405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493888405 = 5 ⋅98777681.

It can be written as a sum of positive squares in only one way, i.e., 482373369 + 22515025 = 21963^2 + 4745^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126222097 + ... + 126222100.

Almost surely, 2^504888394 is an apocalyptic number.

504888394 is a deficient number, since it is larger than the sum of its proper divisors (252444200).

504888394 is a wasteful number, since it uses less digits than its factorization.

504888394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252444199.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 504888394 is about 22469.7217161228. The cubic root of 504888394 is about 796.2787558076.

The spelling of 504888394 in words is "five hundred four million, eight hundred eighty-eight thousand, three hundred ninety-four".