42034243 has 2 divisors, whose sum is σ = 42034244. Its totient is φ = 42034242.

The previous prime is 42034231. The next prime is 42034249. The reversal of 42034243 is 34243024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42034243 - 2⁵ = 42034211 is a prime.

It is not a weakly prime, because it can be changed into another prime (42034249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21017121 + 21017122.

It is an arithmetic number, because the mean of its divisors is an integer number (21017122).

Almost surely, 2^42034243 is an apocalyptic number.

42034243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42034243 is an equidigital number, since it uses as much as digits as its factorization.

42034243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 42034243 is about 6483.3820649411. The cubic root of 42034243 is about 347.6971067477.

Adding to 42034243 its reverse (34243024), we get a palindrome (76277267).

The spelling of 42034243 in words is "forty-two million, thirty-four thousand, two hundred forty-three".