10818216 has 48 divisors (see below), whose sum is σ = 29620500. Its totient is φ = 3566592.

The previous prime is 10818191. The next prime is 10818233. The reversal of 10818216 is 61281801.

It can be written as a sum of positive squares in 2 ways, for example, as 10692900 + 125316 = 3270^2 + 354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10818216.

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, 6210 + ... + 7758.

Almost surely, 2^10818216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10818216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14810250).

10818216 is an abundant number, since it is smaller than the sum of its proper divisors (18802284).

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

10818216 is a wasteful number, since it uses less digits than its factorization.

10818216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 10818216 is about 3289.1056535174. The cubic root of 10818216 is about 221.1660947764.

The spelling of 10818216 in words is "ten million, eight hundred eighteen thousand, two hundred sixteen".