515340412 has 12 divisors (see below), whose sum is σ = 918862056. Its totient is φ = 252808400.

The previous prime is 515340407. The next prime is 515340437. The reversal of 515340412 is 214043515.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215214 + ... + 1215637.

It is an arithmetic number, because the mean of its divisors is an integer number (76571838).

Almost surely, 2^515340412 is an apocalyptic number.

It is an amenable number.

515340412 is a deficient number, since it is larger than the sum of its proper divisors (403521644).

515340412 is a wasteful number, since it uses less digits than its factorization.

515340412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430908 (or 2430906 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 515340412 is about 22701.1103693189. The cubic root of 515340412 is about 801.7360279503.

Adding to 515340412 its reverse (214043515), we get a palindrome (729383927).

The spelling of 515340412 in words is "five hundred fifteen million, three hundred forty thousand, four hundred twelve".