450340343 has 4 divisors (see below), whose sum is σ = 450419928. Its totient is φ = 450260760.

The previous prime is 450340309. The next prime is 450340393. The reversal of 450340343 is 343043054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450340343 - 2⁸ = 450340087 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 (450340393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30596 + ... + 42857.

It is an arithmetic number, because the mean of its divisors is an integer number (112604982).

Almost surely, 2^450340343 is an apocalyptic number.

450340343 is a deficient number, since it is larger than the sum of its proper divisors (79585).

450340343 is an equidigital number, since it uses as much as digits as its factorization.

450340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79584.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 450340343 is about 21221.2238808227. The cubic root of 450340343 is about 766.5025748584.

Adding to 450340343 its reverse (343043054), we get a palindrome (793383397).

The spelling of 450340343 in words is "four hundred fifty million, three hundred forty thousand, three hundred forty-three".