512330421 has 8 divisors (see below), whose sum is σ = 719060320. Its totient is φ = 323577072.

The previous prime is 512330393. The next prime is 512330431. The reversal of 512330421 is 124033215.

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

It is not a de Polignac number, because 512330421 - 2¹⁴ = 512314037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512330431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4494070 + ... + 4494183.

It is an arithmetic number, because the mean of its divisors is an integer number (89882540).

Almost surely, 2^512330421 is an apocalyptic number.

It is an amenable number.

512330421 is a deficient number, since it is larger than the sum of its proper divisors (206729899).

512330421 is a wasteful number, since it uses less digits than its factorization.

512330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988275.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 512330421 is about 22634.7171619174. The cubic root of 512330421 is about 800.1720572636.

Adding to 512330421 its reverse (124033215), we get a palindrome (636363636).

The spelling of 512330421 in words is "five hundred twelve million, three hundred thirty thousand, four hundred twenty-one".