5281218 has 24 divisors (see below), whose sum is σ = 11512956. Its totient is φ = 1749600.

The previous prime is 5281201. The next prime is 5281247. The reversal of 5281218 is 8121825.

It can be written as a sum of positive squares in 2 ways, for example, as 5076009 + 205209 = 2253^2 + 453^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5281191 and 5281200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2448 + ... + 4068.

Almost surely, 2^5281218 is an apocalyptic number.

5281218 is an abundant number, since it is smaller than the sum of its proper divisors (6231738).

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

5281218 is a wasteful number, since it uses less digits than its factorization.

5281218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1807 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 5281218 is about 2298.0900765636. The cubic root of 5281218 is about 174.1451424705.

The spelling of 5281218 in words is "five million, two hundred eighty-one thousand, two hundred eighteen".