22656445 has 8 divisors (see below), whose sum is σ = 31071744. Its totient is φ = 15535824.

The previous prime is 22656401. The next prime is 22656451. The reversal of 22656445 is 54465622.

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 22656445 - 2⁷ = 22656317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22656445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323629 + ... + 323698.

It is an arithmetic number, because the mean of its divisors is an integer number (3883968).

Almost surely, 2^22656445 is an apocalyptic number.

It is an amenable number.

22656445 is a deficient number, since it is larger than the sum of its proper divisors (8415299).

22656445 is an equidigital number, since it uses as much as digits as its factorization.

22656445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647339.

The product of its digits is 57600, while the sum is 34.

The square root of 22656445 is about 4759.8786749244. The cubic root of 22656445 is about 282.9636107989.

The spelling of 22656445 in words is "twenty-two million, six hundred fifty-six thousand, four hundred forty-five".