340433453 has 2 divisors, whose sum is σ = 340433454. Its totient is φ = 340433452.

The previous prime is 340433417. The next prime is 340433459. The reversal of 340433453 is 354334043.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230644969 + 109788484 = 15187^2 + 10478^2 .

It is a cyclic number.

It is not a de Polignac number, because 340433453 - 2⁶ = 340433389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340433459) 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, 170216726 + 170216727.

It is an arithmetic number, because the mean of its divisors is an integer number (170216727).

Almost surely, 2^340433453 is an apocalyptic number.

It is an amenable number.

340433453 is a deficient number, since it is larger than the sum of its proper divisors (1).

340433453 is an equidigital number, since it uses as much as digits as its factorization.

340433453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 29.

The square root of 340433453 is about 18450.8388156203. The cubic root of 340433453 is about 698.2496766910.

Adding to 340433453 its reverse (354334043), we get a palindrome (694767496).

The spelling of 340433453 in words is "three hundred forty million, four hundred thirty-three thousand, four hundred fifty-three".