42426047 has 2 divisors, whose sum is σ = 42426048. Its totient is φ = 42426046.

The previous prime is 42426029. The next prime is 42426061. The reversal of 42426047 is 74062424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42426047 - 2¹⁴ = 42409663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42426247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21213023 + 21213024.

It is an arithmetic number, because the mean of its divisors is an integer number (21213024).

Almost surely, 2^42426047 is an apocalyptic number.

42426047 is a deficient number, since it is larger than the sum of its proper divisors (1).

42426047 is an equidigital number, since it uses as much as digits as its factorization.

42426047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 42426047 is about 6513.5279994792. The cubic root of 42426047 is about 348.7740701860.

The spelling of 42426047 in words is "forty-two million, four hundred twenty-six thousand, forty-seven".