20224317 has 4 divisors (see below), whose sum is σ = 26965760. Its totient is φ = 13482876.

The previous prime is 20224301. The next prime is 20224327. The reversal of 20224317 is 71342202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20224317 - 2⁴ = 20224301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20224293 and 20224302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224327) 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 3 ways as a sum of consecutive naturals, for example, 3370717 + ... + 3370722.

It is an arithmetic number, because the mean of its divisors is an integer number (6741440).

Almost surely, 2^20224317 is an apocalyptic number.

It is an amenable number.

20224317 is a deficient number, since it is larger than the sum of its proper divisors (6741443).

20224317 is an equidigital number, since it uses as much as digits as its factorization.

20224317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741442.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20224317 is about 4497.1454279354. The cubic root of 20224317 is about 272.4528078083.

Adding to 20224317 its reverse (71342202), we get a palindrome (91566519).

The spelling of 20224317 in words is "twenty million, two hundred twenty-four thousand, three hundred seventeen".