20385927 has 24 divisors (see below), whose sum is σ = 31299840. Its totient is φ = 12761280.

The previous prime is 20385887. The next prime is 20385931. The reversal of 20385927 is 72958302.

It is a happy number.

It is not a de Polignac number, because 20385927 - 2⁸ = 20385671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20385891 and 20385900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20385977) 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 23 ways as a sum of consecutive naturals, for example, 8602 + ... + 10712.

It is an arithmetic number, because the mean of its divisors is an integer number (1304160).

Almost surely, 2^20385927 is an apocalyptic number.

20385927 is a deficient number, since it is larger than the sum of its proper divisors (10913913).

20385927 is a wasteful number, since it uses less digits than its factorization.

20385927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 20385927 is about 4515.0777401945. The cubic root of 20385927 is about 273.1765954782.

It can be divided in two parts, 20385 and 927, that added together give a palindrome (21312).

The spelling of 20385927 in words is "twenty million, three hundred eighty-five thousand, nine hundred twenty-seven".