20844112 has 10 divisors (see below), whose sum is σ = 40385498. Its totient is φ = 10422048.

The previous prime is 20844079. The next prime is 20844119. The reversal of 20844112 is 21144802.

It can be written as a sum of positive squares in only one way, i.e., 15808576 + 5035536 = 3976^2 + 2244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20844119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651363 + ... + 651394.

Almost surely, 2^20844112 is an apocalyptic number.

It is an amenable number.

20844112 is a deficient number, since it is larger than the sum of its proper divisors (19541386).

20844112 is a wasteful number, since it uses less digits than its factorization.

20844112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302765 (or 1302759 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 20844112 is about 4565.5352369684. The cubic root of 20844112 is about 275.2080497240.

Adding to 20844112 its reverse (21144802), we get a palindrome (41988914).

The spelling of 20844112 in words is "twenty million, eight hundred forty-four thousand, one hundred twelve".