22447330 has 8 divisors (see below), whose sum is σ = 40405212. Its totient is φ = 8978928.

The previous prime is 22447319. The next prime is 22447339. The reversal of 22447330 is 3374422.

It can be written as a sum of positive squares in 2 ways, for example, as 20439441 + 2007889 = 4521^2 + 1417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22447295 and 22447304.

It is not an unprimeable number, because it can be changed into a prime (22447339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1122357 + ... + 1122376.

Almost surely, 2^22447330 is an apocalyptic number.

22447330 is a deficient number, since it is larger than the sum of its proper divisors (17957882).

22447330 is a wasteful number, since it uses less digits than its factorization.

22447330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244740.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 22447330 is about 4737.8613318669. The cubic root of 22447330 is about 282.0903504736.

The spelling of 22447330 in words is "twenty-two million, four hundred forty-seven thousand, three hundred thirty".