22004044 has 12 divisors (see below), whose sum is σ = 39446568. Its totient is φ = 10733600.

The previous prime is 22004041. The next prime is 22004051. The reversal of 22004044 is 44040022.

It is not an unprimeable number, because it can be changed into a prime (22004041) 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, 66922 + ... + 67249.

It is an arithmetic number, because the mean of its divisors is an integer number (3287214).

Almost surely, 2^22004044 is an apocalyptic number.

It is an amenable number.

22004044 is a deficient number, since it is larger than the sum of its proper divisors (17442524).

22004044 is a wasteful number, since it uses less digits than its factorization.

22004044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134216 (or 134214 counting only the distinct ones).

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

The square root of 22004044 is about 4690.8468318631. The cubic root of 22004044 is about 280.2211008728.

Adding to 22004044 its reverse (44040022), we get a palindrome (66044066).

The spelling of 22004044 in words is "twenty-two million, four thousand, forty-four".