422213849 has 2 divisors, whose sum is σ = 422213850. Its totient is φ = 422213848.

The previous prime is 422213843. The next prime is 422213863. The reversal of 422213849 is 948312224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353440000 + 68773849 = 18800^2 + 8293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422213849 is a prime.

It is a super-3 number, since 3×422213849³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422213843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211106924 + 211106925.

It is an arithmetic number, because the mean of its divisors is an integer number (211106925).

Almost surely, 2^422213849 is an apocalyptic number.

It is an amenable number.

422213849 is a deficient number, since it is larger than the sum of its proper divisors (1).

422213849 is an equidigital number, since it uses as much as digits as its factorization.

422213849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 422213849 is about 20547.8429281519. The cubic root of 422213849 is about 750.2007456708.

The spelling of 422213849 in words is "four hundred twenty-two million, two hundred thirteen thousand, eight hundred forty-nine".