22388448 has 48 divisors (see below), whose sum is σ = 60673536. Its totient is φ = 7221120.

The previous prime is 22388383. The next prime is 22388467. The reversal of 22388448 is 84488322.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786 + ... + 6737.

It is an arithmetic number, because the mean of its divisors is an integer number (1264032).

Almost surely, 2^22388448 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 22388448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30336768).

22388448 is an abundant number, since it is smaller than the sum of its proper divisors (38285088).

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

22388448 is a wasteful number, since it uses less digits than its factorization.

22388448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567 (or 7559 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 22388448 is about 4731.6432663505. The cubic root of 22388448 is about 281.8434823815.

The spelling of 22388448 in words is "twenty-two million, three hundred eighty-eight thousand, four hundred forty-eight".