515330412 has 12 divisors (see below), whose sum is σ = 1202437656. Its totient is φ = 171776800.

The previous prime is 515330393. The next prime is 515330423. The reversal of 515330412 is 214033515.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21472089 + ... + 21472112.

It is an arithmetic number, because the mean of its divisors is an integer number (100203138).

Almost surely, 2^515330412 is an apocalyptic number.

It is an amenable number.

515330412 is an abundant number, since it is smaller than the sum of its proper divisors (687107244).

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

515330412 is a wasteful number, since it uses less digits than its factorization.

515330412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42944208 (or 42944206 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 515330412 is about 22700.8901147070. The cubic root of 515330412 is about 801.7308421146.

Adding to 515330412 its reverse (214033515), we get a palindrome (729363927).

The spelling of 515330412 in words is "five hundred fifteen million, three hundred thirty thousand, four hundred twelve".