20386071 has 12 divisors (see below), whose sum is σ = 29485872. Its totient is φ = 13572576.

The previous prime is 20386063. The next prime is 20386081. The reversal of 20386071 is 17068302.

20386071 is a `hidden beast` number, since 20 + 38 + 607 + 1 = 666.

It is not a de Polignac number, because 20386071 - 2³ = 20386063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11475 + ... + 13131.

It is an arithmetic number, because the mean of its divisors is an integer number (2457156).

Almost surely, 2^20386071 is an apocalyptic number.

20386071 is a deficient number, since it is larger than the sum of its proper divisors (9099801).

20386071 is a wasteful number, since it uses less digits than its factorization.

20386071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20386071 is about 4515.0936867356. The cubic root of 20386071 is about 273.1772386889.

The spelling of 20386071 in words is "twenty million, three hundred eighty-six thousand, seventy-one".