20344244 has 12 divisors (see below), whose sum is σ = 35664804. Its totient is φ = 10154304.

The previous prime is 20344211. The next prime is 20344249. The reversal of 20344244 is 44244302.

It can be written as a sum of positive squares in 2 ways, for example, as 9859600 + 10484644 = 3140^2 + 3238^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344249) 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, 1697 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (2972067).

Almost surely, 2^20344244 is an apocalyptic number.

It is an amenable number.

20344244 is a deficient number, since it is larger than the sum of its proper divisors (15320560).

20344244 is a wasteful number, since it uses less digits than its factorization.

20344244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8914 (or 8912 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 20344244 is about 4510.4594001055. The cubic root of 20344244 is about 272.9902808421.

Adding to 20344244 its reverse (44244302), we get a palindrome (64588546).

The spelling of 20344244 in words is "twenty million, three hundred forty-four thousand, two hundred forty-four".