20441244 has 12 divisors (see below), whose sum is σ = 47696264. Its totient is φ = 6813744.

The previous prime is 20441233. The next prime is 20441249. The reversal of 20441244 is 44214402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20441244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851707 + ... + 851730.

Almost surely, 2^20441244 is an apocalyptic number.

It is an amenable number.

20441244 is an abundant number, since it is smaller than the sum of its proper divisors (27255020).

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

20441244 is a wasteful number, since it uses less digits than its factorization.

20441244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703444 (or 1703442 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 20441244 is about 4521.1993983898. The cubic root of 20441244 is about 273.4234596045.

Adding to 20441244 its reverse (44214402), we get a palindrome (64655646).

The spelling of 20441244 in words is "twenty million, four hundred forty-one thousand, two hundred forty-four".