22340448 has 216 divisors, whose sum is σ = 75538008. Its totient is φ = 6469632.

The previous prime is 22340441. The next prime is 22340467. The reversal of 22340448 is 84404322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22340441) 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 35 ways as a sum of consecutive naturals, for example, 1314136 + ... + 1314152.

It is an arithmetic number, because the mean of its divisors is an integer number (349713).

Almost surely, 2^22340448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22340448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37769004).

22340448 is an abundant number, since it is smaller than the sum of its proper divisors (53197560).

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

22340448 is a wasteful number, since it uses less digits than its factorization.

22340448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 35 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 22340448 is about 4726.5683111535. The cubic root of 22340448 is about 281.6419176151.

The spelling of 22340448 in words is "twenty-two million, three hundred forty thousand, four hundred forty-eight".