42067393 has 2 divisors, whose sum is σ = 42067394. Its totient is φ = 42067392.

The previous prime is 42067379. The next prime is 42067423. The reversal of 42067393 is 39376024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 374544 = 6457^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 42067393 - 2²¹ = 39970241 is a prime.

It is a super-3 number, since 3×42067393³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (42067343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21033696 + 21033697.

It is an arithmetic number, because the mean of its divisors is an integer number (21033697).

Almost surely, 2^42067393 is an apocalyptic number.

It is an amenable number.

42067393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42067393 is an equidigital number, since it uses as much as digits as its factorization.

42067393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 42067393 is about 6485.9380971452. The cubic root of 42067393 is about 347.7884856615.

The spelling of 42067393 in words is "forty-two million, sixty-seven thousand, three hundred ninety-three".