20085286 has 16 divisors (see below), whose sum is σ = 32546304. Its totient is φ = 9241344.

The previous prime is 20085283. The next prime is 20085319. The reversal of 20085286 is 68258002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8950 + ... + 10966.

It is an arithmetic number, because the mean of its divisors is an integer number (2034144).

Almost surely, 2^20085286 is an apocalyptic number.

20085286 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20085286 is a deficient number, since it is larger than the sum of its proper divisors (12461018).

20085286 is a wasteful number, since it uses less digits than its factorization.

20085286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 20085286 is about 4481.6610759851. The cubic root of 20085286 is about 271.8270508825.

The spelling of 20085286 in words is "twenty million, eighty-five thousand, two hundred eighty-six".