22446561 has 8 divisors (see below), whose sum is σ = 30036384. Its totient is φ = 14910560.

The previous prime is 22446553. The next prime is 22446623. The reversal of 22446561 is 16564422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22446561 - 2³ = 22446553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22446661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12471 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (3754548).

Almost surely, 2^22446561 is an apocalyptic number.

It is an amenable number.

22446561 is a deficient number, since it is larger than the sum of its proper divisors (7589823).

22446561 is a wasteful number, since it uses less digits than its factorization.

22446561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26911.

The product of its digits is 11520, while the sum is 30.

The square root of 22446561 is about 4737.7801764117. The cubic root of 22446561 is about 282.0871291557.

The spelling of 22446561 in words is "twenty-two million, four hundred forty-six thousand, five hundred sixty-one".