343245 has 24 divisors (see below), whose sum is σ = 640224. Its totient is φ = 156576.

The previous prime is 343243. The next prime is 343253. The reversal of 343245 is 542343.

It is a happy number.

It is not a de Polignac number, because 343245 - 2¹ = 343243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

343245 is a lucky number.

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343245.

It is not an unprimeable number, because it can be changed into a prime (343243) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 502 + ... + 968.

It is an arithmetic number, because the mean of its divisors is an integer number (26676).

2³⁴³²⁴⁵ is an apocalyptic number.

343245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

343245 is a deficient number, since it is larger than the sum of its proper divisors (296979).

343245 is a wasteful number, since it uses less digits than its factorization.

343245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 482 counting only the distinct ones).

The product of its digits is 1440, while the sum is 21.

The square root of 343245 is about 585.8711462429. The cubic root of 343245 is about 70.0166627000.

Adding to 343245 its reverse (542343), we get a palindrome (885588).

The spelling of 343245 in words is "three hundred forty-three thousand, two hundred forty-five".