42202273 has 2 divisors, whose sum is σ = 42202274. Its totient is φ = 42202272.

The previous prime is 42202271. The next prime is 42202283. The reversal of 42202273 is 37220224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42081169 + 121104 = 6487^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 42202273 - 2¹ = 42202271 is a prime.

Together with 42202271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42202271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101136 + 21101137.

It is an arithmetic number, because the mean of its divisors is an integer number (21101137).

Almost surely, 2^42202273 is an apocalyptic number.

It is an amenable number.

42202273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42202273 is an equidigital number, since it uses as much as digits as its factorization.

42202273 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 42202273 is about 6496.3276549140. The cubic root of 42202273 is about 348.1597919666.

Adding to 42202273 its reverse (37220224), we get a palindrome (79422497).

The spelling of 42202273 in words is "forty-two million, two hundred two thousand, two hundred seventy-three".