343445 has 8 divisors (see below), whose sum is σ = 415800. Its totient is φ = 272320.

The previous prime is 343433. The next prime is 343481. The reversal of 343445 is 544343.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49 + 343396 = 7^2 + 586^2 .

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

It is not a de Polignac number, because 343445 - 2⁶ = 343381 is a prime.

It is a d-powerful number, because it can be written as 3⁶ + 4 + 4⁴ + 3⁷ + 4⁹ + 5⁷ .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 343445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (51975).

2³⁴³⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

343445 is a deficient number, since it is larger than the sum of its proper divisors (72355).

343445 is a wasteful number, since it uses less digits than its factorization.

343445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

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

The square root of 343445 is about 586.0418073824. The cubic root of 343445 is about 70.0302590268.

Adding to 343445 its reverse (544343), we get a palindrome (887788).

The spelling of 343445 in words is "three hundred forty-three thousand, four hundred forty-five".