22404366 has 12 divisors (see below), whose sum is σ = 48542832. Its totient is φ = 7468116.

The previous prime is 22404341. The next prime is 22404367. The reversal of 22404366 is 66340422.

22404366 is a `hidden beast` number, since 224 + 0 + 436 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622326 + ... + 622361.

It is an arithmetic number, because the mean of its divisors is an integer number (4045236).

Almost surely, 2^22404366 is an apocalyptic number.

22404366 is an abundant number, since it is smaller than the sum of its proper divisors (26138466).

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

22404366 is a wasteful number, since it uses less digits than its factorization.

22404366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244695 (or 1244692 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 22404366 is about 4733.3250469411. The cubic root of 22404366 is about 281.9102626799.

Adding to 22404366 its reverse (66340422), we get a palindrome (88744788).

The spelling of 22404366 in words is "twenty-two million, four hundred four thousand, three hundred sixty-six".