22505466 has 16 divisors (see below), whose sum is σ = 45180288. Its totient is φ = 7473600.

The previous prime is 22505459. The next prime is 22505489. The reversal of 22505466 is 66450522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5295 + ... + 8546.

It is an arithmetic number, because the mean of its divisors is an integer number (2823768).

Almost surely, 2^22505466 is an apocalyptic number.

22505466 is an abundant number, since it is smaller than the sum of its proper divisors (22674822).

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

22505466 is a wasteful number, since it uses less digits than its factorization.

22505466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14117.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 22505466 is about 4743.9926222540. The cubic root of 22505466 is about 282.3336677153. Note that the first 3 decimals are identical.

Adding to 22505466 its reverse (66450522), we get a palindrome (88955988).

The spelling of 22505466 in words is "twenty-two million, five hundred five thousand, four hundred sixty-six".