10818220 has 96 divisors (see below), whose sum is σ = 28224000. Its totient is φ = 3471552.

The previous prime is 10818191. The next prime is 10818233. The reversal of 10818220 is 2281801.

It is a junction number, because it is equal to n+sod(n) for n = 10818191 and 10818200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130299 + ... + 130381.

It is an arithmetic number, because the mean of its divisors is an integer number (294000).

Almost surely, 2^10818220 is an apocalyptic number.

10818220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10818220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14112000).

10818220 is an abundant number, since it is smaller than the sum of its proper divisors (17405780).

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

10818220 is a wasteful number, since it uses less digits than its factorization.

10818220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 10818220 is about 3289.1062615854. The cubic root of 10818220 is about 221.1661220349.

The spelling of 10818220 in words is "ten million, eight hundred eighteen thousand, two hundred twenty".