20085186 has 32 divisors (see below), whose sum is σ = 44114688. Its totient is φ = 6045840.

The previous prime is 20085173. The next prime is 20085199. The reversal of 20085186 is 68158002.

It is an interprime number because it is at equal distance from previous prime (20085173) and next prime (20085199).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9825 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (1378584).

Almost surely, 2^20085186 is an apocalyptic number.

20085186 is an abundant number, since it is smaller than the sum of its proper divisors (24029502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20085186 is a wasteful number, since it uses less digits than its factorization.

20085186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 20085186 is about 4481.6499193935. The cubic root of 20085186 is about 271.8265997604.

The spelling of 20085186 in words is "twenty million, eighty-five thousand, one hundred eighty-six".