512243442 has 96 divisors (see below), whose sum is σ = 1207664640. Its totient is φ = 156451680.

The previous prime is 512243441. The next prime is 512243447. The reversal of 512243442 is 244342215.

It is not an unprimeable number, because it can be changed into a prime (512243441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2143159 + ... + 2143397.

It is an arithmetic number, because the mean of its divisors is an integer number (12579840).

Almost surely, 2^512243442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512243442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603832320).

512243442 is an abundant number, since it is smaller than the sum of its proper divisors (695421198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512243442 is a wasteful number, since it uses less digits than its factorization.

512243442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 465 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 512243442 is about 22632.7957177190. The cubic root of 512243442 is about 800.1267726182.

Adding to 512243442 its reverse (244342215), we get a palindrome (756585657).

The spelling of 512243442 in words is "five hundred twelve million, two hundred forty-three thousand, four hundred forty-two".