422543371 has 2 divisors, whose sum is σ = 422543372. Its totient is φ = 422543370.

The previous prime is 422543269. The next prime is 422543399. The reversal of 422543371 is 173345224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422543371 - 2⁹ = 422542859 is a prime.

It is not a weakly prime, because it can be changed into another prime (422553371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211271685 + 211271686.

It is an arithmetic number, because the mean of its divisors is an integer number (211271686).

Almost surely, 2^422543371 is an apocalyptic number.

422543371 is a deficient number, since it is larger than the sum of its proper divisors (1).

422543371 is an equidigital number, since it uses as much as digits as its factorization.

422543371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 422543371 is about 20555.8597728239. The cubic root of 422543371 is about 750.3958627239.

Adding to 422543371 its reverse (173345224), we get a palindrome (595888595).

The spelling of 422543371 in words is "four hundred twenty-two million, five hundred forty-three thousand, three hundred seventy-one".