340424353 has 12 divisors (see below), whose sum is σ = 355606524. Its totient is φ = 325769600.

The previous prime is 340424341. The next prime is 340424393. The reversal of 340424353 is 353424043.

It can be written as a sum of positive squares in 6 ways, for example, as 16136289 + 324288064 = 4017^2 + 18008^2 .

It is not a de Polignac number, because 340424353 - 2²⁵ = 306869921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340424333) 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 in 11 ways as a sum of consecutive naturals, for example, 87183 + ... + 91003.

It is an arithmetic number, because the mean of its divisors is an integer number (29633877).

Almost surely, 2^340424353 is an apocalyptic number.

It is an amenable number.

340424353 is a deficient number, since it is larger than the sum of its proper divisors (15182171).

340424353 is an equidigital number, since it uses as much as digits as its factorization.

340424353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956 (or 3915 counting only the distinct ones).

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

The square root of 340424353 is about 18450.5922127177. The cubic root of 340424353 is about 698.2434550848.

Adding to 340424353 its reverse (353424043), we get a palindrome (693848396).

The spelling of 340424353 in words is "three hundred forty million, four hundred twenty-four thousand, three hundred fifty-three".