20224430 has 16 divisors (see below), whose sum is σ = 36465984. Its totient is φ = 8076000.

The previous prime is 20224423. The next prime is 20224447. The reversal of 20224430 is 3442202.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20224399 and 20224408.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6164 + ... + 8856.

It is an arithmetic number, because the mean of its divisors is an integer number (2279124).

Almost surely, 2^20224430 is an apocalyptic number.

20224430 is a deficient number, since it is larger than the sum of its proper divisors (16241554).

20224430 is a wasteful number, since it uses less digits than its factorization.

20224430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20224430 is about 4497.1579914430. The cubic root of 20224430 is about 272.4533152356.

Adding to 20224430 its reverse (3442202), we get a palindrome (23666632).

The spelling of 20224430 in words is "twenty million, two hundred twenty-four thousand, four hundred thirty".