22004046 has 24 divisors (see below), whose sum is σ = 48785880. Its totient is φ = 7163856.

The previous prime is 22004041. The next prime is 22004051. The reversal of 22004046 is 64040022.

It is an interprime number because it is at equal distance from previous prime (22004041) and next prime (22004051).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13441 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (2032745).

Almost surely, 2^22004046 is an apocalyptic number.

22004046 is an abundant number, since it is smaller than the sum of its proper divisors (26781834).

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

22004046 is a wasteful number, since it uses less digits than its factorization.

22004046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28480 (or 28477 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22004046 is about 4690.8470450442. The cubic root of 22004046 is about 280.2211093628.

Adding to 22004046 its reverse (64040022), we get a palindrome (86044068).

The spelling of 22004046 in words is "twenty-two million, four thousand, forty-six".