20026944 has 84 divisors (see below), whose sum is σ = 65617344. Its totient is φ = 5720832.

The previous prime is 20026939. The next prime is 20026957. The reversal of 20026944 is 44962002.

It is a tau number, because it is divible by the number of its divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1549 + ... + 6515.

Almost surely, 2^20026944 is an apocalyptic number.

20026944 is a gapful number since it is divisible by the number (24) 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 20026944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32808672).

20026944 is an abundant number, since it is smaller than the sum of its proper divisors (45590400).

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

20026944 is a wasteful number, since it uses less digits than its factorization.

20026944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20026944 is about 4475.1473718750. The cubic root of 20026944 is about 271.5636024083.

Adding to 20026944 its reverse (44962002), we get a palindrome (64988946).

The spelling of 20026944 in words is "twenty million, twenty-six thousand, nine hundred forty-four".