340442041 has 2 divisors, whose sum is σ = 340442042. Its totient is φ = 340442040.

The previous prime is 340442027. The next prime is 340442077. The reversal of 340442041 is 140244043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335036416 + 5405625 = 18304^2 + 2325^2 .

It is an emirp because it is prime and its reverse (140244043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340442041 - 2⁹ = 340441529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340443041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170221020 + 170221021.

It is an arithmetic number, because the mean of its divisors is an integer number (170221021).

Almost surely, 2^340442041 is an apocalyptic number.

It is an amenable number.

340442041 is a deficient number, since it is larger than the sum of its proper divisors (1).

340442041 is an equidigital number, since it uses as much as digits as its factorization.

340442041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 340442041 is about 18451.0715406992. The cubic root of 340442041 is about 698.2555481448.

Adding to 340442041 its reverse (140244043), we get a palindrome (480686084).

The spelling of 340442041 in words is "three hundred forty million, four hundred forty-two thousand, forty-one".