20244237 has 8 divisors (see below), whose sum is σ = 29068704. Its totient is φ = 12457968.

The previous prime is 20244199. The next prime is 20244239. The reversal of 20244237 is 73244202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20244237 - 2⁶ = 20244173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244239) 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 7 ways as a sum of consecutive naturals, for example, 259503 + ... + 259580.

It is an arithmetic number, because the mean of its divisors is an integer number (3633588).

Almost surely, 2^20244237 is an apocalyptic number.

It is an amenable number.

20244237 is a deficient number, since it is larger than the sum of its proper divisors (8824467).

20244237 is a wasteful number, since it uses less digits than its factorization.

20244237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519099.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 20244237 is about 4499.3596211017. The cubic root of 20244237 is about 272.5422295185.

Adding to 20244237 its reverse (73244202), we get a palindrome (93488439).

The spelling of 20244237 in words is "twenty million, two hundred forty-four thousand, two hundred thirty-seven".