20244444 has 48 divisors (see below), whose sum is σ = 52066560. Its totient is φ = 6071040.

The previous prime is 20244431. The next prime is 20244449. The reversal of 20244444 is 44444202.

20244444 is a modest number, since divided by 4444 gives 2024 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12852 + ... + 14340.

It is an arithmetic number, because the mean of its divisors is an integer number (1084720).

Almost surely, 2^20244444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20244444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26033280).

20244444 is an abundant number, since it is smaller than the sum of its proper divisors (31822116).

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

20244444 is a wasteful number, since it uses less digits than its factorization.

20244444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 20244444 is about 4499.3826243164. The cubic root of 20244444 is about 272.5431584421.

Adding to 20244444 its reverse (44444202), we get a palindrome (64688646).

The spelling of 20244444 in words is "twenty million, two hundred forty-four thousand, four hundred forty-four".