345443 has 8 divisors (see below), whose sum is σ = 401760. Its totient is φ = 290880.

The previous prime is 345431. The next prime is 345451. The reversal of 345443 is 344543.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345443 - 2⁶ = 345379 is a prime.

It is a d-powerful number, because it can be written as 3³ + 4⁵ + 4⁶ + 5⁷ + 4⁹ + 3³ .

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (345413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23 + ... + 831.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2³⁴⁵⁴⁴³ is an apocalyptic number.

345443 is a deficient number, since it is larger than the sum of its proper divisors (56317).

345443 is an equidigital number, since it uses as much as digits as its factorization.

345443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

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

The square root of 345443 is about 587.7439918876. The cubic root of 345443 is about 70.1657974690.

Adding to 345443 its reverse (344543), we get a palindrome (689986).

Subtracting from 345443 its reverse (344543), we obtain a square (900 = 30²).

The spelling of 345443 in words is "three hundred forty-five thousand, four hundred forty-three".