10845220 has 12 divisors (see below), whose sum is σ = 22775004. Its totient is φ = 4338080.

The previous prime is 10845209. The next prime is 10845221. The reversal of 10845220 is 2254801.

It can be written as a sum of positive squares in 2 ways, for example, as 1272384 + 9572836 = 1128^2 + 3094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10845191 and 10845200.

It is not an unprimeable number, because it can be changed into a prime (10845221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271111 + ... + 271150.

It is an arithmetic number, because the mean of its divisors is an integer number (1897917).

Almost surely, 2^10845220 is an apocalyptic number.

10845220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10845220 is an abundant number, since it is smaller than the sum of its proper divisors (11929784).

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

10845220 is a wasteful number, since it uses less digits than its factorization.

10845220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542270 (or 542268 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 10845220 is about 3293.2081622637. The cubic root of 10845220 is about 221.3499638719.

The spelling of 10845220 in words is "ten million, eight hundred forty-five thousand, two hundred twenty".