42168367 has 2 divisors, whose sum is σ = 42168368. Its totient is φ = 42168366.

The previous prime is 42168331. The next prime is 42168389. The reversal of 42168367 is 76386124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42168367 is a prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42168307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21084183 + 21084184.

It is an arithmetic number, because the mean of its divisors is an integer number (21084184).

Almost surely, 2^42168367 is an apocalyptic number.

42168367 is a deficient number, since it is larger than the sum of its proper divisors (1).

42168367 is an equidigital number, since it uses as much as digits as its factorization.

42168367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 42168367 is about 6493.7175023248. The cubic root of 42168367 is about 348.0665278851.

The spelling of 42168367 in words is "forty-two million, one hundred sixty-eight thousand, three hundred sixty-seven".