20085912 has 96 divisors (see below), whose sum is σ = 67841280. Its totient is φ = 5215680.

The previous prime is 20085911. The next prime is 20085929. The reversal of 20085912 is 21958002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3733 + ... + 7355.

It is an arithmetic number, because the mean of its divisors is an integer number (706680).

Almost surely, 2^20085912 is an apocalyptic number.

20085912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20085912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33920640).

20085912 is an abundant number, since it is smaller than the sum of its proper divisors (47755368).

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

20085912 is a wasteful number, since it uses less digits than its factorization.

20085912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 20085912 is about 4481.7309156173. The cubic root of 20085912 is about 271.8298748729.

The spelling of 20085912 in words is "twenty million, eighty-five thousand, nine hundred twelve".