22304424 has 32 divisors (see below), whose sum is σ = 56437920. Its totient is φ = 7344576.

The previous prime is 22304417. The next prime is 22304441. The reversal of 22304424 is 42440322.

It is a self number, because there is not a number n which added to its sum of digits gives 22304424.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3607 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (1763685).

Almost surely, 2^22304424 is an apocalyptic number.

22304424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22304424 is an abundant number, since it is smaller than the sum of its proper divisors (34133496).

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

22304424 is a wasteful number, since it uses less digits than its factorization.

22304424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11289 (or 11285 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 22304424 is about 4722.7559750637. The cubic root of 22304424 is about 281.4904535272.

Adding to 22304424 its reverse (42440322), we get a palindrome (64744746).

The spelling of 22304424 in words is "twenty-two million, three hundred four thousand, four hundred twenty-four".