22000425444 has 24 divisors (see below), whose sum is σ = 57038140320. Its totient is φ = 7333475112.

The previous prime is 22000425401. The next prime is 22000425479. The reversal of 22000425444 is 44452400022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101853714 + ... + 101853929.

It is an arithmetic number, because the mean of its divisors is an integer number (2376589180).

Almost surely, 2^22000425444 is an apocalyptic number.

It is an amenable number.

22000425444 is an abundant number, since it is smaller than the sum of its proper divisors (35037714876).

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

22000425444 is a wasteful number, since it uses less digits than its factorization.

22000425444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203707656 (or 203707648 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 22000425444 its reverse (44452400022), we get a palindrome (66452825466).

The spelling of 22000425444 in words is "twenty-two billion, four hundred twenty-five thousand, four hundred forty-four".