20444212 has 12 divisors (see below), whose sum is σ = 35948416. Its totient is φ = 10173240.

The previous prime is 20444191. The next prime is 20444213. The reversal of 20444212 is 21244402.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20444212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444213) 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, 11268 + ... + 12955.

Almost surely, 2^20444212 is an apocalyptic number.

It is an amenable number.

20444212 is a deficient number, since it is larger than the sum of its proper divisors (15504204).

20444212 is a wasteful number, since it uses less digits than its factorization.

20444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24438 (or 24436 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 20444212 is about 4521.5276179628. The cubic root of 20444212 is about 273.4366923535.

Adding to 20444212 its reverse (21244402), we get a palindrome (41688614).

The spelling of 20444212 in words is "twenty million, four hundred forty-four thousand, two hundred twelve".