518287349 has 8 divisors (see below), whose sum is σ = 523635840. Its totient is φ = 512948416.

The previous prime is 518287271. The next prime is 518287361. The reversal of 518287349 is 943782815.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 518287349 - 2¹² = 518283253 is a prime.

It is a super-2 number, since 2×518287349² = 537243552266895602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518247349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164612 + ... + 167730.

It is an arithmetic number, because the mean of its divisors is an integer number (65454480).

Almost surely, 2^518287349 is an apocalyptic number.

It is an amenable number.

518287349 is a deficient number, since it is larger than the sum of its proper divisors (5348491).

518287349 is a wasteful number, since it uses less digits than its factorization.

518287349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779.

The product of its digits is 483840, while the sum is 47.

The square root of 518287349 is about 22765.9251733814. The cubic root of 518287349 is about 803.2613473869.

The spelling of 518287349 in words is "five hundred eighteen million, two hundred eighty-seven thousand, three hundred forty-nine".