422404249 has 2 divisors, whose sum is σ = 422404250. Its totient is φ = 422404248.

The previous prime is 422404237. The next prime is 422404277. The reversal of 422404249 is 942404224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282408025 + 139996224 = 16805^2 + 11832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422404249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422404249.

It is not a weakly prime, because it can be changed into another prime (422474249) 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, 211202124 + 211202125.

It is an arithmetic number, because the mean of its divisors is an integer number (211202125).

Almost surely, 2^422404249 is an apocalyptic number.

It is an amenable number.

422404249 is a deficient number, since it is larger than the sum of its proper divisors (1).

422404249 is an equidigital number, since it uses as much as digits as its factorization.

422404249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 422404249 is about 20552.4754956672. The cubic root of 422404249 is about 750.3134979775.

The spelling of 422404249 in words is "four hundred twenty-two million, four hundred four thousand, two hundred forty-nine".