22408448 has 72 divisors (see below), whose sum is σ = 50037120. Its totient is φ = 9953280.

The previous prime is 22408403. The next prime is 22408457. The reversal of 22408448 is 84480422.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82553 + ... + 82823.

It is an arithmetic number, because the mean of its divisors is an integer number (694960).

Almost surely, 2^22408448 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 22408448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25018560).

22408448 is an abundant number, since it is smaller than the sum of its proper divisors (27628672).

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

22408448 is a wasteful number, since it uses less digits than its factorization.

22408448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 22408448 is about 4733.7562252402. The cubic root of 22408448 is about 281.9273826735.

The spelling of 22408448 in words is "twenty-two million, four hundred eight thousand, four hundred forty-eight".