19224128 has 112 divisors (see below), whose sum is σ = 49158144. Its totient is φ = 7242240.

The previous prime is 19224103. The next prime is 19224133. The reversal of 19224128 is 82142291.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19224128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231575 + ... + 231657.

It is an arithmetic number, because the mean of its divisors is an integer number (438912).

Almost surely, 2^19224128 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 19224128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24579072).

19224128 is an abundant number, since it is smaller than the sum of its proper divisors (29934016).

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

19224128 is a wasteful number, since it uses less digits than its factorization.

19224128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 150 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 19224128 is about 4384.5328143372. The cubic root of 19224128 is about 267.8853002899.

The spelling of 19224128 in words is "nineteen million, two hundred twenty-four thousand, one hundred twenty-eight".