512217430 has 32 divisors (see below), whose sum is σ = 967256640. Its totient is φ = 195027840.

The previous prime is 512217413. The next prime is 512217437. The reversal of 512217430 is 34712215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 512217395 and 512217404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512217437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8152 + ... + 33028.

It is an arithmetic number, because the mean of its divisors is an integer number (30226770).

Almost surely, 2^512217430 is an apocalyptic number.

512217430 is a deficient number, since it is larger than the sum of its proper divisors (455039210).

512217430 is a wasteful number, since it uses less digits than its factorization.

512217430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24984.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 512217430 is about 22632.2210575984. The cubic root of 512217430 is about 800.1132287650.

Adding to 512217430 its reverse (34712215), we get a palindrome (546929645).

The spelling of 512217430 in words is "five hundred twelve million, two hundred seventeen thousand, four hundred thirty".