422542249 has 2 divisors, whose sum is σ = 422542250. Its totient is φ = 422542248.

The previous prime is 422542199. The next prime is 422542261. The reversal of 422542249 is 942245224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349951849 + 72590400 = 18707^2 + 8520^2 .

It is a cyclic number.

It is not a de Polignac number, because 422542249 - 2⁹ = 422541737 is a prime.

It is not a weakly prime, because it can be changed into another prime (422540249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211271124 + 211271125.

It is an arithmetic number, because the mean of its divisors is an integer number (211271125).

Almost surely, 2^422542249 is an apocalyptic number.

It is an amenable number.

422542249 is a deficient number, since it is larger than the sum of its proper divisors (1).

422542249 is an equidigital number, since it uses as much as digits as its factorization.

422542249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 34.

The square root of 422542249 is about 20555.8324813178. The cubic root of 422542249 is about 750.3951985357.

The spelling of 422542249 in words is "four hundred twenty-two million, five hundred forty-two thousand, two hundred forty-nine".