20444112 has 120 divisors (see below), whose sum is σ = 62919584. Its totient is φ = 6158592.

The previous prime is 20444111. The next prime is 20444113. The reversal of 20444112 is 21144402.

It is an interprime number because it is at equal distance from previous prime (20444111) and next prime (20444113).

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 (20444111) 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, 125343 + ... + 125505.

Almost surely, 2^20444112 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 20444112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31459792).

20444112 is an abundant number, since it is smaller than the sum of its proper divisors (42475472).

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

20444112 is a wasteful number, since it uses less digits than its factorization.

20444112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 20444112 is about 4521.5165597397. The cubic root of 20444112 is about 273.4362465270.

Adding to 20444112 its reverse (21144402), we get a palindrome (41588514).

The spelling of 20444112 in words is "twenty million, four hundred forty-four thousand, one hundred twelve".