426645229 has 2 divisors, whose sum is σ = 426645230. Its totient is φ = 426645228.

The previous prime is 426645217. The next prime is 426645251. The reversal of 426645229 is 922546624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400400100 + 26245129 = 20010^2 + 5123^2 .

It is a cyclic number.

It is not a de Polignac number, because 426645229 - 2¹¹ = 426643181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426645191 and 426645200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426645829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213322614 + 213322615.

It is an arithmetic number, because the mean of its divisors is an integer number (213322615).

Almost surely, 2^426645229 is an apocalyptic number.

It is an amenable number.

426645229 is a deficient number, since it is larger than the sum of its proper divisors (1).

426645229 is an equidigital number, since it uses as much as digits as its factorization.

426645229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 426645229 is about 20655.3922499671. The cubic root of 426645229 is about 752.8162143832.

The spelling of 426645229 in words is "four hundred twenty-six million, six hundred forty-five thousand, two hundred twenty-nine".