22306944 has 64 divisors (see below), whose sum is σ = 64651680. Its totient is φ = 6758400.

The previous prime is 22306943. The next prime is 22306979. The reversal of 22306944 is 44960322.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (22306943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584 + ... + 6864.

Almost surely, 2^22306944 is an apocalyptic number.

22306944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22306944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32325840).

22306944 is an abundant number, since it is smaller than the sum of its proper divisors (42344736).

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

22306944 is a wasteful number, since it uses less digits than its factorization.

22306944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 22306944 is about 4723.0227609022. The cubic root of 22306944 is about 281.5010542527.

The spelling of 22306944 in words is "twenty-two million, three hundred six thousand, nine hundred forty-four".