42758293 has 2 divisors, whose sum is σ = 42758294. Its totient is φ = 42758292.

The previous prime is 42758239. The next prime is 42758299. The reversal of 42758293 is 39285724.

Together with previous prime (42758239) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 19158129 = 4858^2 + 4377^2 .

It is a cyclic number.

It is not a de Polignac number, because 42758293 - 2¹³ = 42750101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42758299) 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, 21379146 + 21379147.

It is an arithmetic number, because the mean of its divisors is an integer number (21379147).

Almost surely, 2^42758293 is an apocalyptic number.

It is an amenable number.

42758293 is a deficient number, since it is larger than the sum of its proper divisors (1).

42758293 is an equidigital number, since it uses as much as digits as its factorization.

42758293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 42758293 is about 6538.9825661184. The cubic root of 42758293 is about 349.6821413504.

The spelling of 42758293 in words is "forty-two million, seven hundred fifty-eight thousand, two hundred ninety-three".