424320229 has 2 divisors, whose sum is σ = 424320230. Its totient is φ = 424320228.

The previous prime is 424320223. The next prime is 424320241. The reversal of 424320229 is 922023424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396209025 + 28111204 = 19905^2 + 5302^2 .

It is a cyclic number.

It is not a de Polignac number, because 424320229 - 2²¹ = 422223077 is a prime.

It is a super-2 number, since 2×424320229² = 360095313477224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424320197 and 424320206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424320223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212160114 + 212160115.

It is an arithmetic number, because the mean of its divisors is an integer number (212160115).

Almost surely, 2^424320229 is an apocalyptic number.

It is an amenable number.

424320229 is a deficient number, since it is larger than the sum of its proper divisors (1).

424320229 is an equidigital number, since it uses as much as digits as its factorization.

424320229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 424320229 is about 20599.0346618476. The cubic root of 424320229 is about 751.4462340096.

The spelling of 424320229 in words is "four hundred twenty-four million, three hundred twenty thousand, two hundred twenty-nine".