512668429 has 18 divisors (see below), whose sum is σ = 645783210. Its totient is φ = 405621216.

The previous prime is 512668427. The next prime is 512668441. The reversal of 512668429 is 924866215.

It can be written as a sum of positive squares in 3 ways, for example, as 37515625 + 475152804 = 6125^2 + 21798^2 .

It is not a de Polignac number, because 512668429 - 2¹ = 512668427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512668423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22674 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (35876845).

Almost surely, 2^512668429 is an apocalyptic number.

It is an amenable number.

512668429 is a deficient number, since it is larger than the sum of its proper divisors (133114781).

512668429 is a wasteful number, since it uses less digits than its factorization.

512668429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61949 (or 61929 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 512668429 is about 22642.1825140599. The cubic root of 512668429 is about 800.3479887120.

It can be divided in two parts, 51266 and 8429, that added together give a palindrome (59695).

The spelling of 512668429 in words is "five hundred twelve million, six hundred sixty-eight thousand, four hundred twenty-nine".