20466005 has 16 divisors (see below), whose sum is σ = 28145280. Its totient is φ = 13995072.

The previous prime is 20466001. The next prime is 20466007. The reversal of 20466005 is 50066402.

It is not a de Polignac number, because 20466005 - 2² = 20466001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466001) 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 15 ways as a sum of consecutive naturals, for example, 18611 + ... + 19679.

It is an arithmetic number, because the mean of its divisors is an integer number (1759080).

Almost surely, 2^20466005 is an apocalyptic number.

It is an amenable number.

20466005 is a deficient number, since it is larger than the sum of its proper divisors (7679275).

20466005 is a wasteful number, since it uses less digits than its factorization.

20466005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20466005 is about 4523.9368916907. The cubic root of 20466005 is about 273.5338166595.

The spelling of 20466005 in words is "twenty million, four hundred sixty-six thousand, five".