20466205 has 8 divisors (see below), whose sum is σ = 25627392. Its totient is φ = 15661008.

The previous prime is 20466179. The next prime is 20466227. The reversal of 20466205 is 50266402.

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

It is a cyclic number.

It is not a de Polignac number, because 20466205 - 2⁹ = 20465693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20466205.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 88869 + ... + 89098.

It is an arithmetic number, because the mean of its divisors is an integer number (3203424).

Almost surely, 2^20466205 is an apocalyptic number.

It is an amenable number.

20466205 is a deficient number, since it is larger than the sum of its proper divisors (5161187).

20466205 is a wasteful number, since it uses less digits than its factorization.

20466205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177995.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20466205 is about 4523.9589962775. The cubic root of 20466205 is about 273.5347076751.

The spelling of 20466205 in words is "twenty million, four hundred sixty-six thousand, two hundred five".