22644160 has 112 divisors (see below), whose sum is σ = 67299840. Its totient is φ = 7050240.

The previous prime is 22644137. The next prime is 22644163. The reversal of 22644160 is 6144622.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22644163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24181 + ... + 25099.

Almost surely, 2^22644160 is an apocalyptic number.

22644160 is a gapful number since it is divisible by the number (20) 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 22644160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33649920).

22644160 is an abundant number, since it is smaller than the sum of its proper divisors (44655680).

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

22644160 is a wasteful number, since it uses less digits than its factorization.

22644160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22644160 is about 4758.5880258749. The cubic root of 22644160 is about 282.9124577834.

Adding to 22644160 its reverse (6144622), we get a palindrome (28788782).

The spelling of 22644160 in words is "twenty-two million, six hundred forty-four thousand, one hundred sixty".