20027112 has 128 divisors (see below), whose sum is σ = 61378560. Its totient is φ = 5322240.

The previous prime is 20027087. The next prime is 20027113. The reversal of 20027112 is 21172002.

It is a junction number, because it is equal to n+sod(n) for n = 20027091 and 20027100.

It is not an unprimeable number, because it can be changed into a prime (20027113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274308 + ... + 274380.

It is an arithmetic number, because the mean of its divisors is an integer number (479520).

Almost surely, 2^20027112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20027112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30689280).

20027112 is an abundant number, since it is smaller than the sum of its proper divisors (41351448).

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

20027112 is a wasteful number, since it uses less digits than its factorization.

20027112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 20027112 is about 4475.1661421672. The cubic root of 20027112 is about 271.5643617613.

Adding to 20027112 its reverse (21172002), we get a palindrome (41199114).

The spelling of 20027112 in words is "twenty million, twenty-seven thousand, one hundred twelve".