22443408 has 120 divisors (see below), whose sum is σ = 71314880. Its totient is φ = 6531840.

The previous prime is 22443403. The next prime is 22443409. The reversal of 22443408 is 80434422.

It is a happy number.

22443408 is a `hidden beast` number, since 224 + 434 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (22443401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35253 + ... + 35883.

Almost surely, 2^22443408 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 22443408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35657440).

22443408 is an abundant number, since it is smaller than the sum of its proper divisors (48871472).

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

22443408 is a wasteful number, since it uses less digits than its factorization.

22443408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 668 counting only the distinct ones).

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

The square root of 22443408 is about 4737.4474139562. The cubic root of 22443408 is about 282.0739205642.

The spelling of 22443408 in words is "twenty-two million, four hundred forty-three thousand, four hundred eight".