2206605312 has 126 divisors (see below), whose sum is σ = 6411306837. Its totient is φ = 731283456.

The previous prime is 2206605301. The next prime is 2206605319. The reversal of 2206605312 is 2135066022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2206605312 is a `hidden beast` number, since 2 + 20 + 6 + 605 + 31 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1735888896 + 470716416 = 41664^2 + 21696^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33216.

It is not an unprimeable number, because it can be changed into a prime (2206605319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12754858 + ... + 12755030.

Almost surely, 2^2206605312 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 2206605312

2206605312 is an abundant number, since it is smaller than the sum of its proper divisors (4204701525).

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

2206605312 is an frugal number, since it uses more digits than its factorization.

2206605312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2206605312 is about 46974.5176877847. The cubic root of 2206605312 is about 1301.8917845600.

The spelling of 2206605312 in words is "two billion, two hundred six million, six hundred five thousand, three hundred twelve".