2204106845 has 4 divisors (see below), whose sum is σ = 2644928220. Its totient is φ = 1763285472.

The previous prime is 2204106841. The next prime is 2204106881. The reversal of 2204106845 is 5486014022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1693075609 + 511031236 = 41147^2 + 22606^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204106845 - 2² = 2204106841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204106841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220410680 + ... + 220410689.

It is an arithmetic number, because the mean of its divisors is an integer number (661232055).

Almost surely, 2^2204106845 is an apocalyptic number.

It is an amenable number.

2204106845 is a deficient number, since it is larger than the sum of its proper divisors (440821375).

2204106845 is an equidigital number, since it uses as much as digits as its factorization.

2204106845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440821374.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2204106845 is about 46947.9163009393. The cubic root of 2204106845 is about 1301.4002358341.

The spelling of 2204106845 in words is "two billion, two hundred four million, one hundred six thousand, eight hundred forty-five".