504430243 has 4 divisors (see below), whose sum is σ = 509327728. Its totient is φ = 499532760.

The previous prime is 504430231. The next prime is 504430253. The reversal of 504430243 is 342034405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342034405 = 5 ⋅68406881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504430243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504430253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2448588 + ... + 2448793.

It is an arithmetic number, because the mean of its divisors is an integer number (127331932).

Almost surely, 2^504430243 is an apocalyptic number.

504430243 is a deficient number, since it is larger than the sum of its proper divisors (4897485).

504430243 is a wasteful number, since it uses less digits than its factorization.

504430243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897484.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 504430243 is about 22459.5245497317. The cubic root of 504430243 is about 796.0378271082.

Adding to 504430243 its reverse (342034405), we get a palindrome (846464648).

The spelling of 504430243 in words is "five hundred four million, four hundred thirty thousand, two hundred forty-three".