340004453 has 2 divisors, whose sum is σ = 340004454. Its totient is φ = 340004452.

The previous prime is 340004447. The next prime is 340004461. The reversal of 340004453 is 354400043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311946244 + 28058209 = 17662^2 + 5297^2 .

It is an emirp because it is prime and its reverse (354400043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340004453 - 2²⁴ = 323227237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340004443) 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, 170002226 + 170002227.

It is an arithmetic number, because the mean of its divisors is an integer number (170002227).

Almost surely, 2^340004453 is an apocalyptic number.

It is an amenable number.

340004453 is a deficient number, since it is larger than the sum of its proper divisors (1).

340004453 is an equidigital number, since it uses as much as digits as its factorization.

340004453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 340004453 is about 18439.2096631065. The cubic root of 340004453 is about 697.9562517223.

Adding to 340004453 its reverse (354400043), we get a palindrome (694404496).

The spelling of 340004453 in words is "three hundred forty million, four thousand, four hundred fifty-three".