20220244 has 24 divisors (see below), whose sum is σ = 39261600. Its totient is φ = 9034080.

The previous prime is 20220217. The next prime is 20220247. The reversal of 20220244 is 44202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299 + ... + 6490.

It is an arithmetic number, because the mean of its divisors is an integer number (1635900).

Almost surely, 2^20220244 is an apocalyptic number.

It is an amenable number.

20220244 is a deficient number, since it is larger than the sum of its proper divisors (19041356).

20220244 is a wasteful number, since it uses less digits than its factorization.

20220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7863 (or 7861 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 20220244 is about 4496.6925623173. The cubic root of 20220244 is about 272.4345167120.

Adding to 20220244 its reverse (44202202), we get a palindrome (64422446).

The spelling of 20220244 in words is "twenty million, two hundred twenty thousand, two hundred forty-four".