19228304 has 30 divisors (see below), whose sum is σ = 39330630. Its totient is φ = 9105408.

The previous prime is 19228289. The next prime is 19228327. The reversal of 19228304 is 40382291.

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 3610000 = 3952^2 + 1900^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4112 + ... + 7440.

It is an arithmetic number, because the mean of its divisors is an integer number (1311021).

Almost surely, 2^19228304 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 19228304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19665315).

19228304 is an abundant number, since it is smaller than the sum of its proper divisors (20102326).

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

19228304 is a wasteful number, since it uses less digits than its factorization.

19228304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 19228304 is about 4385.0090079725. The cubic root of 19228304 is about 267.9046961939.

The spelling of 19228304 in words is "nineteen million, two hundred twenty-eight thousand, three hundred four".