518480329 has 4 divisors (see below), whose sum is σ = 541022976. Its totient is φ = 495937684.

The previous prime is 518480323. The next prime is 518480381. The reversal of 518480329 is 923084815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923084815 = 5 ⋅184616963.

It is not a de Polignac number, because 518480329 - 2³ = 518480321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518480291 and 518480300.

It is not an unprimeable number, because it can be changed into a prime (518480321) by changing a digit.

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, 11271289 + ... + 11271334.

It is an arithmetic number, because the mean of its divisors is an integer number (135255744).

Almost surely, 2^518480329 is an apocalyptic number.

It is an amenable number.

518480329 is a deficient number, since it is larger than the sum of its proper divisors (22542647).

518480329 is a wasteful number, since it uses less digits than its factorization.

518480329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22542646.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 518480329 is about 22770.1631307288. The cubic root of 518480329 is about 803.3610309181.

The spelling of 518480329 in words is "five hundred eighteen million, four hundred eighty thousand, three hundred twenty-nine".