424238329 has 2 divisors, whose sum is σ = 424238330. Its totient is φ = 424238328.

The previous prime is 424238291. The next prime is 424238359. The reversal of 424238329 is 923832424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408848400 + 15389929 = 20220^2 + 3923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424238329 is a prime.

It is not a weakly prime, because it can be changed into another prime (424238359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212119164 + 212119165.

It is an arithmetic number, because the mean of its divisors is an integer number (212119165).

Almost surely, 2^424238329 is an apocalyptic number.

It is an amenable number.

424238329 is a deficient number, since it is larger than the sum of its proper divisors (1).

424238329 is an equidigital number, since it uses as much as digits as its factorization.

424238329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 424238329 is about 20597.0466086767. The cubic root of 424238329 is about 751.3978842002.

The spelling of 424238329 in words is "four hundred twenty-four million, two hundred thirty-eight thousand, three hundred twenty-nine".