340440103 has 2 divisors, whose sum is σ = 340440104. Its totient is φ = 340440102.

The previous prime is 340440091. The next prime is 340440127. The reversal of 340440103 is 301044043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340440103 - 2²¹ = 338342951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340440143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170220051 + 170220052.

It is an arithmetic number, because the mean of its divisors is an integer number (170220052).

Almost surely, 2^340440103 is an apocalyptic number.

340440103 is a deficient number, since it is larger than the sum of its proper divisors (1).

340440103 is an equidigital number, since it uses as much as digits as its factorization.

340440103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 340440103 is about 18451.0190233494. The cubic root of 340440103 is about 698.2542231793.

Adding to 340440103 its reverse (301044043), we get a palindrome (641484146).

The spelling of 340440103 in words is "three hundred forty million, four hundred forty thousand, one hundred three".