20466808 has 32 divisors (see below), whose sum is σ = 40564800. Its totient is φ = 9665152.

The previous prime is 20466773. The next prime is 20466847. The reversal of 20466808 is 80866402.

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, 9966 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (1267650).

Almost surely, 2^20466808 is an apocalyptic number.

It is an amenable number.

20466808 is a deficient number, since it is larger than the sum of its proper divisors (20097992).

20466808 is a wasteful number, since it uses less digits than its factorization.

20466808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20466808 is about 4524.0256409530. The cubic root of 20466808 is about 273.5373940518.

The spelling of 20466808 in words is "twenty million, four hundred sixty-six thousand, eight hundred eight".