422752279 has 2 divisors, whose sum is σ = 422752280. Its totient is φ = 422752278.

The previous prime is 422752241. The next prime is 422752331. The reversal of 422752279 is 972257224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422752279 - 2¹³ = 422744087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422762279) 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, 211376139 + 211376140.

It is an arithmetic number, because the mean of its divisors is an integer number (211376140).

Almost surely, 2^422752279 is an apocalyptic number.

422752279 is a deficient number, since it is larger than the sum of its proper divisors (1).

422752279 is an equidigital number, since it uses as much as digits as its factorization.

422752279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 422752279 is about 20560.9406156430. The cubic root of 422752279 is about 750.5195091010.

The spelling of 422752279 in words is "four hundred twenty-two million, seven hundred fifty-two thousand, two hundred seventy-nine".