42329429 has 2 divisors, whose sum is σ = 42329430. Its totient is φ = 42329428.

The previous prime is 42329423. The next prime is 42329431. The reversal of 42329429 is 92492324.

42329429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35724529 + 6604900 = 5977^2 + 2570^2 .

It is a cyclic number.

It is not a de Polignac number, because 42329429 - 2²⁴ = 25552213 is a prime.

Together with 42329431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42329423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21164714 + 21164715.

It is an arithmetic number, because the mean of its divisors is an integer number (21164715).

Almost surely, 2^42329429 is an apocalyptic number.

It is an amenable number.

42329429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42329429 is an equidigital number, since it uses as much as digits as its factorization.

42329429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 42329429 is about 6506.1070541454. The cubic root of 42329429 is about 348.5091113674.

The spelling of 42329429 in words is "forty-two million, three hundred twenty-nine thousand, four hundred twenty-nine".