22448644 has 27 divisors (see below), whose sum is σ = 41470023. Its totient is φ = 10632072.

The previous prime is 22448617. The next prime is 22448663. The reversal of 22448644 is 44684422.

The square root of 22448644 is 4738.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (49152) is a multiple of the sum of its prime divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 217897 + ... + 217999.

Almost surely, 2^22448644 is an apocalyptic number.

22448644 is the 4738-th square number.

It is an amenable number.

22448644 is a deficient number, since it is larger than the sum of its proper divisors (19021379).

22448644 is a wasteful number, since it uses less digits than its factorization.

22448644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 128 counting only the distinct ones).

The product of its digits is 49152, while the sum is 34.

The cubic root of 22448644 is about 282.0958546099.

The spelling of 22448644 in words is "twenty-two million, four hundred forty-eight thousand, six hundred forty-four".