22004364 has 12 divisors (see below), whose sum is σ = 51343544. Its totient is φ = 7334784.

The previous prime is 22004363. The next prime is 22004371. The reversal of 22004364 is 46340022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22004364.

It is not an unprimeable number, because it can be changed into a prime (22004363) 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, 916837 + ... + 916860.

Almost surely, 2^22004364 is an apocalyptic number.

It is an amenable number.

22004364 is an abundant number, since it is smaller than the sum of its proper divisors (29339180).

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

22004364 is a wasteful number, since it uses less digits than its factorization.

22004364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833704 (or 1833702 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22004364 is about 4690.8809407189. The cubic root of 22004364 is about 280.2224592643. Note that the first 3 decimals are identical.

Adding to 22004364 its reverse (46340022), we get a palindrome (68344386).

The spelling of 22004364 in words is "twenty-two million, four thousand, three hundred sixty-four".