20044944 has 30 divisors (see below), whose sum is σ = 56098406. Its totient is φ = 6681600.

The previous prime is 20044939. The next prime is 20044949. The reversal of 20044944 is 44944002.

It is an interprime number because it is at equal distance from previous prime (20044939) and next prime (20044949).

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 4928400 = 3888^2 + 2220^2 .

It is not an unprimeable number, because it can be changed into a prime (20044949) 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 in 5 ways as a sum of consecutive naturals, for example, 69457 + ... + 69744.

Almost surely, 2^20044944 is an apocalyptic number.

20044944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20044944 is an abundant number, since it is smaller than the sum of its proper divisors (36053462).

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

20044944 is a wasteful number, since it uses less digits than its factorization.

20044944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139215 (or 139206 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20044944 is about 4477.1580271418. The cubic root of 20044944 is about 271.6449375187.

Adding to 20044944 its reverse (44944002), we get a palindrome (64988946).

The spelling of 20044944 in words is "twenty million, forty-four thousand, nine hundred forty-four".