20426112 has 192 divisors, whose sum is σ = 71604000. Its totient is φ = 5455872.

The previous prime is 20426111. The next prime is 20426137. The reversal of 20426112 is 21162402.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426111) 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, 137014 + ... + 137162.

Almost surely, 2^20426112 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 20426112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35802000).

20426112 is an abundant number, since it is smaller than the sum of its proper divisors (51177888).

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

20426112 is a wasteful number, since it uses less digits than its factorization.

20426112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20426112 is about 4519.5256388254. The cubic root of 20426112 is about 273.3559740648.

Adding to 20426112 its reverse (21162402), we get a palindrome (41588514).

The spelling of 20426112 in words is "twenty million, four hundred twenty-six thousand, one hundred twelve".