515305340 has 48 divisors (see below), whose sum is σ = 1231856640. Its totient is φ = 179234880.

The previous prime is 515305337. The next prime is 515305393. The reversal of 515305340 is 43503515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45860 + ... + 55979.

It is an arithmetic number, because the mean of its divisors is an integer number (25663680).

Almost surely, 2^515305340 is an apocalyptic number.

It is an amenable number.

515305340 is an abundant number, since it is smaller than the sum of its proper divisors (716551300).

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

515305340 is a wasteful number, since it uses less digits than its factorization.

515305340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101882 (or 101880 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 515305340 is about 22700.3378829479. The cubic root of 515305340 is about 801.7178398924.

Adding to 515305340 its reverse (43503515), we get a palindrome (558808855).

The spelling of 515305340 in words is "five hundred fifteen million, three hundred five thousand, three hundred forty".