20244213 has 12 divisors (see below), whose sum is σ = 31900128. Its totient is φ = 12269160.

The previous prime is 20244199. The next prime is 20244239. The reversal of 20244213 is 31244202.

It is not a de Polignac number, because 20244213 - 2⁶ = 20244149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102145 + ... + 102342.

It is an arithmetic number, because the mean of its divisors is an integer number (2658344).

Almost surely, 2^20244213 is an apocalyptic number.

It is an amenable number.

20244213 is a deficient number, since it is larger than the sum of its proper divisors (11655915).

20244213 is a wasteful number, since it uses less digits than its factorization.

20244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204504 (or 204501 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20244213 is about 4499.3569540547. The cubic root of 20244213 is about 272.5421218168.

Adding to 20244213 its reverse (31244202), we get a palindrome (51488415).

The spelling of 20244213 in words is "twenty million, two hundred forty-four thousand, two hundred thirteen".