20242273 has 2 divisors, whose sum is σ = 20242274. Its totient is φ = 20242272.

The previous prime is 20242253. The next prime is 20242297. The reversal of 20242273 is 37224202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13601344 + 6640929 = 3688^2 + 2577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242273 is a prime.

It is not a weakly prime, because it can be changed into another prime (20242213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121136 + 10121137.

It is an arithmetic number, because the mean of its divisors is an integer number (10121137).

Almost surely, 2^20242273 is an apocalyptic number.

It is an amenable number.

20242273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242273 is an equidigital number, since it uses as much as digits as its factorization.

20242273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20242273 is about 4499.1413625269. The cubic root of 20242273 is about 272.5334156480.

Adding to 20242273 its reverse (37224202), we get a palindrome (57466475).

The spelling of 20242273 in words is "twenty million, two hundred forty-two thousand, two hundred seventy-three".