2205006644 has 12 divisors (see below), whose sum is σ = 3860520804. Its totient is φ = 1102000704.

The previous prime is 2205006631. The next prime is 2205006659. The reversal of 2205006644 is 4466005022.

It can be written as a sum of positive squares in 2 ways, for example, as 1794539044 + 410467600 = 42362^2 + 20260^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115697 + ... + 133400.

It is an arithmetic number, because the mean of its divisors is an integer number (321710067).

Almost surely, 2^2205006644 is an apocalyptic number.

It is an amenable number.

2205006644 is a deficient number, since it is larger than the sum of its proper divisors (1655514160).

2205006644 is a wasteful number, since it uses less digits than its factorization.

2205006644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251314 (or 251312 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2205006644 is about 46957.4982723739. The cubic root of 2205006644 is about 1301.5773051871.

The spelling of 2205006644 in words is "two billion, two hundred five million, six thousand, six hundred forty-four".