42079229 has 2 divisors, whose sum is σ = 42079230. Its totient is φ = 42079228.

The previous prime is 42079223. The next prime is 42079231. The reversal of 42079229 is 92297024.

It is a happy number.

42079229 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., 40615129 + 1464100 = 6373^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 42079229 - 2¹² = 42075133 is a prime.

Together with 42079231, 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 (42079223) 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, 21039614 + 21039615.

It is an arithmetic number, because the mean of its divisors is an integer number (21039615).

Almost surely, 2^42079229 is an apocalyptic number.

It is an amenable number.

42079229 is a deficient number, since it is larger than the sum of its proper divisors (1).

42079229 is an equidigital number, since it uses as much as digits as its factorization.

42079229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 42079229 is about 6486.8504684477. The cubic root of 42079229 is about 347.8211003006.

The spelling of 42079229 in words is "forty-two million, seventy-nine thousand, two hundred twenty-nine".