20244361 has 2 divisors, whose sum is σ = 20244362. Its totient is φ = 20244360.

The previous prime is 20244337. The next prime is 20244383. The reversal of 20244361 is 16344202.

It is a happy number.

It is an a-pointer prime, because the next prime (20244383) can be obtained adding 20244361 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13838400 + 6405961 = 3720^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244361 - 2¹⁵ = 20211593 is a prime.

It is not a weakly prime, because it can be changed into another prime (20244391) 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 as a sum of consecutive naturals, namely, 10122180 + 10122181.

It is an arithmetic number, because the mean of its divisors is an integer number (10122181).

Almost surely, 2^20244361 is an apocalyptic number.

It is an amenable number.

20244361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244361 is an equidigital number, since it uses as much as digits as its factorization.

20244361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20244361 is about 4499.3734008193. The cubic root of 20244361 is about 272.5427859759.

Adding to 20244361 its reverse (16344202), we get a palindrome (36588563).

The spelling of 20244361 in words is "twenty million, two hundred forty-four thousand, three hundred sixty-one".