422438057 has 2 divisors, whose sum is σ = 422438058. Its totient is φ = 422438056.

The previous prime is 422437999. The next prime is 422438059. The reversal of 422438057 is 750834224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378069136 + 44368921 = 19444^2 + 6661^2 .

It is a cyclic number.

It is not a de Polignac number, because 422438057 - 2¹⁴ = 422421673 is a prime.

Together with 422438059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422438059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211219028 + 211219029.

It is an arithmetic number, because the mean of its divisors is an integer number (211219029).

Almost surely, 2^422438057 is an apocalyptic number.

It is an amenable number.

422438057 is a deficient number, since it is larger than the sum of its proper divisors (1).

422438057 is an equidigital number, since it uses as much as digits as its factorization.

422438057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 422438057 is about 20553.2979592084. The cubic root of 422438057 is about 750.3335150757. Note that the first 3 decimals are identical.

The spelling of 422438057 in words is "four hundred twenty-two million, four hundred thirty-eight thousand, fifty-seven".