42934429 has 2 divisors, whose sum is σ = 42934430. Its totient is φ = 42934428.

The previous prime is 42934427. The next prime is 42934447. The reversal of 42934429 is 92443924.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 7828804 = 5925^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 42934429 - 2¹ = 42934427 is a prime.

Together with 42934427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42934427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21467214 + 21467215.

It is an arithmetic number, because the mean of its divisors is an integer number (21467215).

Almost surely, 2^42934429 is an apocalyptic number.

It is an amenable number.

42934429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42934429 is an equidigital number, since it uses as much as digits as its factorization.

42934429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 42934429 is about 6552.4368749344. The cubic root of 42934429 is about 350.1616369060.

The spelling of 42934429 in words is "forty-two million, nine hundred thirty-four thousand, four hundred twenty-nine".