22444004020 has 12 divisors (see below), whose sum is σ = 47132408484. Its totient is φ = 8977601600.

The previous prime is 22444003991. The next prime is 22444004041. The reversal of 22444004020 is 2040044422.

It can be written as a sum of positive squares in 2 ways, for example, as 12229263396 + 10214740624 = 110586^2 + 101068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22444003982 and 22444004000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561100081 + ... + 561100120.

It is an arithmetic number, because the mean of its divisors is an integer number (3927700707).

Almost surely, 2^22444004020 is an apocalyptic number.

22444004020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444004020 is an abundant number, since it is smaller than the sum of its proper divisors (24688404464).

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

22444004020 is a wasteful number, since it uses less digits than its factorization.

22444004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122200210 (or 1122200208 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22444004020 its reverse (2040044422), we get a palindrome (24484048442).

The spelling of 22444004020 in words is "twenty-two billion, four hundred forty-four million, four thousand, twenty".