20466771 has 8 divisors (see below), whose sum is σ = 29388240. Its totient is φ = 12594912.

The previous prime is 20466763. The next prime is 20466773. The reversal of 20466771 is 17766402.

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

It is not a de Polignac number, because 20466771 - 2³ = 20466763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20466773) 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 7 ways as a sum of consecutive naturals, for example, 262356 + ... + 262433.

It is an arithmetic number, because the mean of its divisors is an integer number (3673530).

Almost surely, 2^20466771 is an apocalyptic number.

20466771 is a deficient number, since it is larger than the sum of its proper divisors (8921469).

20466771 is a wasteful number, since it uses less digits than its factorization.

20466771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524805.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20466771 is about 4524.0215516728. The cubic root of 20466771 is about 273.5372292176.

The spelling of 20466771 in words is "twenty million, four hundred sixty-six thousand, seven hundred seventy-one".