505431230 has 8 divisors (see below), whose sum is σ = 909776232. Its totient is φ = 202172488.

The previous prime is 505431221. The next prime is 505431247. The reversal of 505431230 is 32134505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 505431196 and 505431205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25271552 + ... + 25271571.

It is an arithmetic number, because the mean of its divisors is an integer number (113722029).

Almost surely, 2^505431230 is an apocalyptic number.

505431230 is a deficient number, since it is larger than the sum of its proper divisors (404345002).

505431230 is a wasteful number, since it uses less digits than its factorization.

505431230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50543130.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 505431230 is about 22481.7977484008. The cubic root of 505431230 is about 796.5640293849.

Adding to 505431230 its reverse (32134505), we get a palindrome (537565735).

The spelling of 505431230 in words is "five hundred five million, four hundred thirty-one thousand, two hundred thirty".