42354343 has 2 divisors, whose sum is σ = 42354344. Its totient is φ = 42354342.

The previous prime is 42354331. The next prime is 42354359. The reversal of 42354343 is 34345324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42354343 - 2⁵ = 42354311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42351343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21177171 + 21177172.

It is an arithmetic number, because the mean of its divisors is an integer number (21177172).

Almost surely, 2^42354343 is an apocalyptic number.

42354343 is a deficient number, since it is larger than the sum of its proper divisors (1).

42354343 is an equidigital number, since it uses as much as digits as its factorization.

42354343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 28.

The square root of 42354343 is about 6508.0214351214. The cubic root of 42354343 is about 348.5774724208.

Adding to 42354343 its reverse (34345324), we get a palindrome (76699667).

The spelling of 42354343 in words is "forty-two million, three hundred fifty-four thousand, three hundred forty-three".