22304347 has 16 divisors (see below), whose sum is σ = 25651360. Its totient is φ = 19222272.

The previous prime is 22304333. The next prime is 22304351. The reversal of 22304347 is 74340322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22304347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22304327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17413 + ... + 18649.

It is an arithmetic number, because the mean of its divisors is an integer number (1603210).

Almost surely, 2^22304347 is an apocalyptic number.

22304347 is a deficient number, since it is larger than the sum of its proper divisors (3347013).

22304347 is a wasteful number, since it uses less digits than its factorization.

22304347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342.

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

The square root of 22304347 is about 4722.7478230369. The cubic root of 22304347 is about 281.4901296035.

Adding to 22304347 its reverse (74340322), we get a palindrome (96644669).

The spelling of 22304347 in words is "twenty-two million, three hundred four thousand, three hundred forty-seven".