22404866 has 16 divisors (see below), whose sum is σ = 37044000. Its totient is φ = 10078080.

The previous prime is 22404859. The next prime is 22404871. The reversal of 22404866 is 66840422.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3116 + ... + 7383.

It is an arithmetic number, because the mean of its divisors is an integer number (2315250).

Almost surely, 2^22404866 is an apocalyptic number.

22404866 is a deficient number, since it is larger than the sum of its proper divisors (14639134).

22404866 is a wasteful number, since it uses less digits than its factorization.

22404866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10609.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 22404866 is about 4733.3778636403. The cubic root of 22404866 is about 281.9123598021.

Subtracting 22404866 from its reverse (66840422), we obtain a square (44435556 = 6666²).

The spelling of 22404866 in words is "twenty-two million, four hundred four thousand, eight hundred sixty-six".