22194304 has 48 divisors (see below), whose sum is σ = 48634110. Its totient is φ = 10081280.

The previous prime is 22194259. The next prime is 22194311. The reversal of 22194304 is 40349122.

22194304 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 6512704 = 3960^2 + 2552^2 .

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, 14772 + ... + 16204.

Almost surely, 2^22194304 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 22194304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24317055).

22194304 is an abundant number, since it is smaller than the sum of its proper divisors (26439806).

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

22194304 is a wasteful number, since it uses less digits than its factorization.

22194304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22194304 is about 4711.0831026421. The cubic root of 22194304 is about 281.0264367253.

The spelling of 22194304 in words is "twenty-two million, one hundred ninety-four thousand, three hundred four".