11273218 has 8 divisors (see below), whose sum is σ = 18447120. Its totient is φ = 5124180.

The previous prime is 11273209. The next prime is 11273231. The reversal of 11273218 is 81237211.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 11273192 and 11273201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256188 + ... + 256231.

It is an arithmetic number, because the mean of its divisors is an integer number (2305890).

Almost surely, 2^11273218 is an apocalyptic number.

11273218 is a deficient number, since it is larger than the sum of its proper divisors (7173902).

11273218 is a wasteful number, since it uses less digits than its factorization.

11273218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512432.

The product of its digits is 672, while the sum is 25.

The square root of 11273218 is about 3357.5613173850. The cubic root of 11273218 is about 224.2242784503.

The spelling of 11273218 in words is "eleven million, two hundred seventy-three thousand, two hundred eighteen".