422353949 has 2 divisors, whose sum is σ = 422353950. Its totient is φ = 422353948.

The previous prime is 422353913. The next prime is 422353957. The reversal of 422353949 is 949353224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404291449 + 18062500 = 20107^2 + 4250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422353949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422353969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211176974 + 211176975.

It is an arithmetic number, because the mean of its divisors is an integer number (211176975).

Almost surely, 2^422353949 is an apocalyptic number.

It is an amenable number.

422353949 is a deficient number, since it is larger than the sum of its proper divisors (1).

422353949 is an equidigital number, since it uses as much as digits as its factorization.

422353949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 41.

The square root of 422353949 is about 20551.2517623623. The cubic root of 422353949 is about 750.2837142910.

The spelling of 422353949 in words is "four hundred twenty-two million, three hundred fifty-three thousand, nine hundred forty-nine".