518828229 has 6 divisors (see below), whose sum is σ = 749418566. Its totient is φ = 345885480.

The previous prime is 518828209. The next prime is 518828257. The reversal of 518828229 is 922828815.

It can be written as a sum of positive squares in only one way, i.e., 515199204 + 3629025 = 22698^2 + 1905^2 .

It is not a de Polignac number, because 518828229 - 2¹⁵ = 518795461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518828209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28823782 + ... + 28823799.

Almost surely, 2^518828229 is an apocalyptic number.

It is an amenable number.

518828229 is a deficient number, since it is larger than the sum of its proper divisors (230590337).

518828229 is a wasteful number, since it uses less digits than its factorization.

518828229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57647587 (or 57647584 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 518828229 is about 22777.8012327793. The cubic root of 518828229 is about 803.5406756722.

The spelling of 518828229 in words is "five hundred eighteen million, eight hundred twenty-eight thousand, two hundred twenty-nine".