340323453 has 12 divisors (see below), whose sum is σ = 499637788. Its totient is φ = 223162560.

The previous prime is 340323443. The next prime is 340323461. The reversal of 340323453 is 354323043.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15350724 + 324972729 = 3918^2 + 18027^2 .

It is not a de Polignac number, because 340323453 - 2⁴ = 340323437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340323413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309400 + ... + 310497.

Almost surely, 2^340323453 is an apocalyptic number.

It is an amenable number.

340323453 is a deficient number, since it is larger than the sum of its proper divisors (159314335).

340323453 is a wasteful number, since it uses less digits than its factorization.

340323453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619964 (or 619961 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

The square root of 340323453 is about 18447.8576805005. The cubic root of 340323453 is about 698.1744630305.

Adding to 340323453 its reverse (354323043), we get a palindrome (694646496).

The spelling of 340323453 in words is "three hundred forty million, three hundred twenty-three thousand, four hundred fifty-three".