2081227906 has 8 divisors (see below), whose sum is σ = 3150482940. Its totient is φ = 1031066928.

The previous prime is 2081227877. The next prime is 2081227919. The reversal of 2081227906 is 6097221802.

It can be written as a sum of positive squares in 2 ways, for example, as 2066520681 + 14707225 = 45459^2 + 3835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 4773241 + ... + 4773676.

Almost surely, 2^2081227906 is an apocalyptic number.

2081227906 is a deficient number, since it is larger than the sum of its proper divisors (1069255034).

2081227906 is a wasteful number, since it uses less digits than its factorization.

2081227906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547028.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2081227906 is about 45620.4768278456. The cubic root of 2081227906 is about 1276.7519999529.

The spelling of 2081227906 in words is "two billion, eighty-one million, two hundred twenty-seven thousand, nine hundred six".